Why did Jesus warn against saying the wordracain Matthew 5:22?

Now He takes up the law in its various parts, at least what has to do with men. Here He does not enter into what touches God directly, but first of all takes up that which flows from human violence, and after this the great flagrant example of human corruption; for violence and corruption are the two outstanding forms of human iniquity. Before the flood even, such was the condition of men: "The earth was corrupt before God, and the earth was filled with violence." Here, in verse 21, we have the light of the kingdom cast on the command, "Thou shalt not kill: and whosoever shall kill shall be in danger of the judgment." The law took cognizance of this extreme form of violence; but our Lord gives length, breadth, height, and depth to it: "But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire" (ver. 22). That is, our Lord treats as now coming under the same category with murder, in the sight of God, every kind of violence, and feeling, and expression; anything of contempt and hatred, whatever expresses the ill-feeling of the heart; any putting down of another, the will to annihilate others as far as character or influence is concerned: all this is no better than murder in God's searching eye. He is expanding the law; He is showing now One who looks at and judges the feeling of the heart. Therefore it is not at all a question merely of the consequences of violence to a man, for there might be no very bad effect produced by these words of anger, but they proved the state of the heart; and this is what the Lord is dealing with here. "Therefore if thou bring thy gift to the altar, and there rememberest that thy brother hath aught against thee, leave there thy gift before the altar, and go thy way: first be reconciled to thy brother, and then come and offer thy gift" (vers. 23, 24). He is not yet manifesting the Christian in his entire separation from the Jewish system. These words clearly show a connection with Israel — though the principle applies to a Christian; for the altar has no reference to the Lord's table.

The remainder of the chapter shows that God accepts from man no righteousness apart from faith; for it will be seen that the Lord strikes not only at wrong actions, but at wrong motives. The law of Moses had said, "Thou shalt not kill." But Christ's authority is higher than that of Moses, and He affirms that causeless anger against one's brother puts him in the same danger of judgment as does murder. He judges men's inner thoughts; but if one expressed such thoughts despisingly toward another, branding him as "Raca" (vain or empty), he was in danger of being rightly called before the Jewish council to answer to this serious charge. Worse still, he might express those thoughts hatefully, calling one a fool: if so he was in danger of hell fire. A basically hateful character has no faith: "whosoever hateth his brother is a murderer: and ye know that no murderer both eternal life abiding in him" (1Jn.3:15).

He takes some of the commandments which He wrote on the second table of stone and begins with the commandment: "Thou shalt not kill." Murder was the first awful fruit after the fall, sprung as it was from envy in the heart. The penalty of murder is the judgment. This, then, is the letter of the law. It dealt with the outward deed, but the heart itself it did not touch. Now He speaks. "I say unto you, that every one that is _lightly angry with his brother shall be subject to the judgment." (The word "lightly" belongs in here. It was dropped in some manuscripts, but stands in the oldest. It is not angry alone outwardly, but even the remotest feeling of displeasure is meant.) It shall be as if he had committed the deed "thou shalt not kill." Every one that hates his brother is a murderer (1 John 3:15). "Whosoever shall say to his brother, Raca (a word embodying hatred and contempt) shall be called before the Sanhedrin; but whosoever shall say, Fool, shall be subject to the penalty of the hell fire." It will be so, no doubt, when the kingdom will be come into the earth; swift judgment will overtake the offender. But the words lay bare the heart and show the impossibility of man to stand before God, who judges the heart, in their own righteousness. The believer being the partaker of the divine nature, is righteous and loves his brother. Only the reception of eternal life, which is Christ Himself, can produce righteousness and love. "Whosoever has been begotten of God does not practice sin, because His seed abides in him and he cannot sin, because he has been begotten of God. In this are manifest the children of God and the children of the devil. Whoever does not practice righteousness is not of God, and he who does not love his brother" (1 John 3:9-11). The believer walking in the Spirit will in no way fulfill flesh's lust.

The Lord Jesus now sets His own words over against this commandment with its human addition: “But I say unto you.” These words occur five times in this part of the fifth chapter. He speaks with the same authority as the One who had once given the law, for He is the Son of God. Yet He does not set aside the law by His words but extends its application to man's condition of heart. Whilst the commandment only forbade the extreme manifestation of hatred, i.e. killing a person, the Lord shows that anger with a brother (which means the Jewish “brother” here) deserves the same punishment as killing itself.

If in the opinion of the Rabbis only the murderer was subject to this judgment, the Lord's words show that the one who was angry with his brother for no reason was subject to the same judgment. The one who called his brother “Raca” (Aramaic: “reka” — fool, lunatic) was subject to be called before the Sanhedrin (the supreme Jewish court at that time), and whosoever should say “fool” was to be subject to hell (“Gehenna”): eternal damnation. If the last of these three sins, which hardly differ from one another, led to eternal damnation, then the others would do so as well. God does not look at the outward appearance but into our hearts.

The Lord Jesus now sets His own words over against this commandment with its human addition: "But I say unto you." These words occur five times in this part of the fifth chapter. He speaks with the same authority as the One who had once given the law, for He is the Son of God. Yet He does not set aside the law by His words but extends its application to man's condition of heart. Whilst the commandment only forbade the extreme manifestation of hatred, i.e. killing a person, the Lord shows that anger with a brother (which means the Jewish "brother" here) deserves the same punishment as killing itself.

If in the opinion of the Rabbis only the murderer was subject to this judgment, the Lord's words show that the one who was angry with his brother for no reason was subject to the same judgment. The one who called his brother "Raca" (Aramaic: "reka"-fool, lunatic) was subject to be called before the Sanhedrin (the supreme Jewish court at that time), and whosoever should say "fool" was to be subject to hell ("Gehenna"): eternal damnation. If the last of these three sins, which hardly differ from one another, led to eternal damnation, then the others would do so as well. God does not look at the outward appearance but into our hearts.

"Ye have heard that it was said to those of old, Thou shalt not kill; and whosoever shall kill shall be subject to the judgment. But I say to you, that everyone that is [rightly] angry with his brother shall be subject to the judgment; whosoever shall say to his brother, Raca, shall be subject to the council; and whosoever shall say, Fool, shall be subject to the hell of fire" (Matt. 5:21-22). The law and the prophets He had vindicated. All must come to pass. Yet the law made nothing perfect. He speaks Who is above the law and gave fulness to all on His own authority.

Thus is the commandment made exceeding broad and deep. The axe is laid to the root of the evil tree. All violent feelings are judged as in God's sight, and every evil word of malice and contempt shown to be of sinful and dangerous consequence. As He said later in the same Gospel (Matt. 12:37), "By thy words thou shalt be justified, and by thy words thou shalt be condemned." Here He warns, not so much of every light word, but of wrath, hatred, and contempt. The Judge of all the earth, Himself despised by man and abhorred by the nation, as was soon proved, could not fail to discern aright.

The source, motive, and aim decide. If of God and for Him by the Spirit, anger has His sanction; if for self, it is evil that exposes to judgment: and so the Lord denounces on its various degrees expressed in a form familiar to Jews.

The "judgment," the "council" (or Sanhedrin), and the "hell (Gehenna) of fire" are three grades of penalty, as is evident; but in the Kingdom of heaven all under one authority. "Thou shalt not kill" stood as the sixth commandment of the law. God had long before declared that "whoso sheddeth man's blood, by man shall his blood be shed." The executive law in Israel could go no further than this. It could not deal with the state of the heart but with the outward act only. But the law as expressed on the tables of stone applied not merely to the outward act, and their appending in the way they did the executive to the moral law, inferred that the two were equal in what they covered; as they were not. The state of the heart was thus left out of view in the estimate of accountability toward God, and the practical bearing of the law was nullified for the many.

But now, the kingdom of heaven was drawing nigh, in which another estimate of things would be made and acted on. Anger in the heart, where causeless, and the railing charges which men so lightly bring against one another, would be all crimes against an authority which had at its command not mere physical penalties, limited by the temporal life, but the awful Gehenna of fire ― hell itself. It is not meant that under this divine government no mercy would be shown: that is not the point, nor what the words express. But such things would be within the range of jurisdiction; and man would be made to realize that there a God who judgeth the hearts, and by whom actions are weighed.

The Sermon on the Mount (as Matt. 5 - 7 is called) does not suppose the Kingdom to be established. There is a tone of the rejection of Christ running through it all. See verses 10-12, as also Matthew 6 and many of the exhortations of Matthew 7 which would not apply to that time of blessing on the earth. But coming to verses 20 and following, it will be observed that it is not the spiritualising of the law as often expressed, but the contrast drawn between the mere outward observance of it in Pharisaical righteousness and an internal reality looked for by Christ, and this as characteristic in this present time of those who, when Christ sets up the Kingdom, should have entrance into it. Thus He takes up the two forms of human evil, violence and corruption (vers. 21, 27), and gives the law that forbids them a new force. He judges the feelings and state of the heart. It was not enough not to kill: to cherish anger or contempt was of the same character as murder in His sight; His judgment of it expressed in the terms of the judicial proceedings with which they were familiar in their local and superior courts. "The judgment" inflicted death by the sword; "the council" (Sanhedrim) by stoning; and "the Gehenna of fire" would intensify the horrors of it. (See Alford in loc.) In what follows we see the Lord in the way with the Jew to judgment; — "thine adversary," because of His rejection, — to come under His hand in governmental dealing till they had received double for all their sins as Isaiah 40:2 puts it, or to be reconciled with Him while it was yet possible, as Psalm 2:12 warned them.

The Lord was not content, with authority peculiarly and emphatically His own, to lay down the hateful evil of anger in heart and word, even if not in violent deed. He proceeds to carry out the revealed mind of God for the kingdom by requiring reconciliation if any had stumbled one's brother. Throughout, disciples are in view, not mankind in general. Sin in disciples is exceeding sinful: good is peremptory (surely not evil) for the kingdom of the heavens.