What does it mean that you cannot serve two masters in Matthew 6:24?

It is impossible to serve God and mammon at the same time. Mammon is simply material possessions: these are given to be of service to us, not that we should serve them. If we profess to serve God while really serving mammon, we shell actually despise God and His claims, whether or not we would think of this as hatred. On the one hand, there may be strong feelings of love toward one master and hatred toward the other; or on the other hand, the feeling may not be so strong, but the fact of holding to one and belittling the other will be evident.

The words 'No one can serve two masters' are a general principle which the Lord Jesus then explains. In the last part of the verse He addresses His disciples personally and says plainly: 'Ye cannot serve God and mammon.' As already mentioned in verse 21 the heart is spoken of much more than the outward appearance. This is why the Lord Jesus speaks of hating and loving and then of holding and despising. Thus we see that hatred and love point out the attitude of heart which is revealed in despising or holding. There is no middle path.

In Matthew 6:19-24 the Lord Jesus warns His disciples against striving for earthly treasures but also against undivided affections. He sums it all up in the last verse: 'No man can serve two masters...' This utterance and many other words of the Bible have become proverbial sayings. Every reasonable man in this world knows that one cannot at the same time put his interests and his energy into two opposite goals.

(2) Separate interests distract thus and divide the heart. God and mammon ― that is, the treasures of earth personified and viewed as an idol, ― each claim the man in ways entirely incompatible with one another. Such service, if attempted, can only be a form on one side. One master will be despised, if not hated. "He who will be a friend of the world is the enemy of God;" he who cleaves to God will despise all the world can offer. Yet how many are seeking to unite things that cannot be united! the result being only a halting inconsistency of life in which the Christian side is necessarily that which suffers eclipse.

261 Our use of present things is always unrighteous, for we have lost our title. These riches represent now the alienation of the world from God, and the setting up, and realisation of self and its enjoyments instead of God. But the Lord turns it round to good. Our natural character is unrighteous stewards of unrighteous mammon. But it becomes thus a matter of faithfulness so to use it, for spent on self it resumes its natural character of the expression and representation of selfishness. On the other hand, this use is a test of faithfulness, and he who is faithful in the least is faithful also in much; and he who has used or given this according to the mind of God, thus setting up God, and down self, God will entrust him on the same principle with more important, even the true riches, for there has been faithfulness to God and forgetfulness of self, which is the principle on which God can give, and on which alone we can use these true riches, our own proper riches as new creatures. On the one hand it is righteousness, on the other a real test of what hold the authority and excellency of God has on our mind. Besides, this object really becomes our master; in truth Satan governs by it. What governs our heart, our object, is our master, and the love of money thus rules, and God is not sound according to our natural character. This will manifest itself in loving one and hating the other, or at least cleaving to one and despising the other. These two forms of attachment are given, because the subtle and deceitful heart might plead against one form. But so it is - we cannot in effect serve God and mammon.

Then follow the exhortations with regard to the things of this life. And, first, as to the laying up of treasures upon earth. The Lord brings in a principle, not of natural interest, but of spiritual wisdom and freedom from care, which the soul enjoys that does not want anything here below. Supposing there is something that one very much values upon earth, there is proportionate fear lest the thief or some corroding thing should spoil our treasure. Very different is that which the Lord enjoins that we should seek: "Lay not up for yourselves treasures upon earth, where moth and rust doth corrupt, and where thieves break through and steal: but lay up for yourselves treasures in heaven, where neither moth nor rust doth corrupt, and where thieves do not break through nor steal," a most solemn test for examining ourselves by. "For where your treasure is, there will your heart be also" (vers. 19-21). We may detect where we are by that which our thoughts chiefly rest upon. If they are heavenward, blessed are we; but if earthward, we shall find that those very things upon which our hearts are set will prove a sorrow one day or another. The Lord traces all this to one grand root — you cannot serve two masters. You have not two hearts, but one; and your heart will be with that which you value most. Everything is thus followed up to its source: God on the one hand and mammon on the other. Mammon is what sums up the lusts of the heart of man as to all things here. It may manifest itself in different forms, but this is the root — covetousness. "Ye cannot serve God and mammon." "Therefore I say unto you, Take no thought [be not anxious] for your life, what ye shall eat or what ye shall drink; nor yet for your body, what ye shall put on." The great point is indifference to present things, or rather, a peaceful trust about them; not because we do not value the mercies of God, but because we have confidence in our Father's love and care about us. The apostle Paul shows us the most beautiful expression of this when he says, "I have learned, in whatsoever state I am, therewith to be content." He had known changes of circumstances — what it was to have nothing, and what it was to have abundance; but the great point was his thorough content with God's portion for him. This was not a thing that he passed through lightly, but he had learned it. It was a matter of attainment — of judging of things in the light of God's presence and love. The blessing is to be looking onward with this thought: our Father deals with us now with a view to glory; as the apostle adds, "My God shall supply all your need, according to His riches in glory by Christ Jesus." How sweet that is! "My God" — the God that I have proved, whose affection I have tasted. I can count upon Him for you as well as for me; and He "shall supply all your need," not merely according to the riches of His grace, but according to His riches in glory by Christ Jesus. He has taken you from this world as His children: He is going to have you the companions of His Son above; and he deals with you now according to your place and position then. Whatever is suitable to this great plan of His glory and love, the Lord will give us to prove the consequence of that.

May the Lord strengthen us, that we may accept this with thankful hearts, knowing that we are not our own masters! The Lord will preserve us from the dangers, the snares, the pains, which our haste or wilfulness in leaving Him out of these outward things brings with it. He shows us in this chapter the exceeding folly of it, even as to the body. He takes instances from the outward world to show how God may be confided in to accomplish His own purposes best. And more than that, He reminds us that these outward things, on which we are tempted to lay such great stress, are only the objects that the Gentiles seek after. A Gentile was a term used in speaking of a man without God, in contrast with a Jew who had God in an outward manner in this world. A Christian is a man who has God in heaven as his Father. "Your heavenly Father knoweth that ye have need of all these things." Therefore, as our Father knows this, why should we doubt Him? We do not distrust our earthly father; much less then should we doubt our heavenly Father.

Very searching words as to earthly possessions are next spoken. No tendency is more deep-seated with all men than that of pursuing, grasping at, and laying up treasures upon earth, though they waste under the action of natural forces as well as the action of violent men. If we really know the Father in heaven, we shall find our treasure in heaven, and there our heart will be; and we have only to have the single eye to see this, and to see all else clearly. Then too our bodies become full of light: that is, we become luminous ourselves. We shall either be dominated by God or by mammon, for we cannot serve two masters. God and mammon are too utterly opposed for that.

God or Mammon

The last words of the paragraph are: 'Ye cannot serve God and mammon.' As disciples of the Lord Jesus we are called to follow him and to serve God. Together with this high calling it cannot be suffered to serve another master, 'mammon'. This is simply impossible. So there is no middle road in this connection! And yet the human heart is inclined to look for such a way repeatedly. But the Word of God warns us against it and our own experience will confirm it if we are honest.

This lesson is summed up pointedly in verse 13. There is no true service to two masters at the same time. The world serves mammon, material things: the believer is a servant of God. Let the lines be clearly drawn: the believer is not wise if he tries to serve both masters. It will not work. Pharisees made a show of serving God, while all the time being mere servants of mammon. They were not believers at all.

The Lord Jesus had already forcefully warned his disciples against laying up earthly treasures in the verses 19 to 21. With the words 'Ye cannot serve God and mammon' he most clearly stresses that laying up money and property is a sign of an evil attitude of heart and therefore idolatry (see Col. 3:5). But the disciple whose heart is filled with unbelieving worry about tomorrow is serving-although perhaps unknowingly-mammon. This the Lord Jesus will go into in the following verses.