Does God know our thoughts?
Answered from the commentary of L. M. Grant, Arno Clemens Gaebelein, An Outline of Sound Words and 17 others
Yes, God knows our thoughts. He not only knows but understands every thought passing through every mind, and understands them better than we do. He knows them "afar off," before they ever pass through our minds, as Psalm 139:2 says, and every word before it leaves the tongue, with the motive behind it. He knows us this way because He formed us, so nothing is hidden from Him, not even the thoughts of the heart. Scripture says it plainly: "I the Lord search the heart, I try the reins" (Jeremiah 17:10); He "searches all hearts, and understands all the imaginations of the thoughts" (1 Chronicles 28:9); and "all things are naked and opened unto the eyes of Him with whom we have to do" (Hebrews 4:13). Man looks on the outward appearance, but the Lord looks on the heart (1 Samuel 16:7). The Lord Jesus showed this same knowledge on earth. He saw the unspoken thoughts of the scribes (Matthew 9:4; Mark 2:8) and answered them, which proved Him to be God, since none but God can read men's thoughts. He "knew what was in man" (John 2:25), and He knew it not by human discernment but by divine omniscience.
This carries a warning. It is a delusion to think a thought is concealed or harmless because it is never spoken. Evil speaking flows from evil thinking, so evil thoughts are to be judged before they reach the lips. God will judge the secrets of men (Romans 2:16). At His coming the Lord will make manifest the counsels of the hearts (1 Corinthians 4:5), and our motives as well as our deeds will come to light. Even now the word of God searches the thoughts and intents of the heart, which brings God's knowledge to bear on the conscience before that day. To the natural man it is dreadful to be under that eye. To the believer who knows God's love, though, it brings rest and great comfort, because He knew what was inside before it came out, and yet He still loves and serves us. He knows every sorrow and feeling of His people with tender concern. When He searches the believer's heart, He finds there the mind of the Spirit rather than the flesh (Romans 8:27). So the saint can welcome His searching and pray, "Search me, O God, and know my heart: try me, and know my thoughts" (Psalm 139:23-24), so that the evil he hates may be found out and put away.
Verses: Mark 2:8, Romans 2:16, Psalms 139:24, Psalms 139:1, Psalms 139:2, Psalms 139:3, Psalms 139:4, Psalms 139:23, 1 Chronicles 28:9, Psalms 94:11, Hebrews 4:12, Hebrews 4:13, Jeremiah 17:10, 1 Samuel 16:7, Psalms 44:21, Proverbs 15:11, Jeremiah 11:20, Jeremiah 20:12, 1 Kings 8:39, Psalms 7:9, Proverbs 16:2, Proverbs 21:2, Ezekiel 11:5, Matthew 9:4, Luke 5:22, Luke 6:8, Luke 11:17, John 2:24, John 2:25, Acts 1:24, Acts 15:8, Romans 8:27, 1 Corinthians 4:5, 1 Corinthians 3:20, Revelation 2:23, 1 John 3:20, Matthew 6:8, Psalms 33:13, Psalms 33:14, Psalms 33:15, Proverbs 17:3, Isaiah 66:18, Psalms 38:9, Psalms 147:5, Proverbs 24:12
The above is AI generated summary based on the writers below.
What the commentators say
The passages the answer is drawn from, the most direct first, with the words that bear on the question marked.
The psalmist felt himself searched out fully in the presence of God — such a searching that he himself had been unable to accomplish. Every movement was known by God, whether sitting or rising. He not only knows, but understands the thoughts passing through every mind. He understands them better than we do (v. 2). Of course, it is staggering to think that this is so in regard to the untold millions of people He has created!
Whether active or whether lying down, we are always subject to God's comprehension (v. 3), and our activities are always under His observation. Every word that issues from our lips is perfectly known by Him who has said, "By your words you will be justified, and by your words you will be condemned" (Matt. 12:37). For our words are an index to the condition of our hearts, and the great Judge of all takes full account of these as well as our actions. If we keep this in mind, we shall surely be preserved from much evil.
All is known to the Lord. The unseen world as well as the future; all eternity is known to Him. All is naked and open before Him. He knoweth the hearts of men, yea even our thoughts afar off, before they ever pass through our finite minds.
He is omniscient, all-knowing. He is the only Being able to do so. Solomon says in 1 Kings 8:39, “thou, thou only, knowest the hearts of all the children of men”. This can only be said of God. He knows the inward thoughts and feelings of every man.
God knows exactly what we are, He knows every thought, every motive, and nothing is or can be hidden from Him. In this assurance the child of God walks; he knows God is looking into his heart, and sees all things. He does not fear the look of God, who is light; nay, he is glad of it. All that he is in himself, his God knows, and he is aware that he can never take God by surprise by what he does, because God knows what he is, though very often he is a wonder of evil to himself. There is not the thinnest gossamer wail between him and God, nor yet a single step which he can ever take away from the eye of God.
Every detail of our lives is known to God; every movement of the body, and the thought of the mind and heart at its inception. Every moment of the day of activity, the time of our rest; yea, all the ways that distinguish us down here are thoroughly known to Him. Before the word that has been conceived has left the tongue it is known to God. He knows it altogether: the motive and spirit of its conception, the object of its transmission. Others may be deceived by its sound; we may deceive ourselves regarding the motive for it, but He knows everything about it perfectly. How good it is to go through life in the consciousness of these things. O that we were constantly conscious that we have to do with God in everything. Sometimes God will not let us go forward; at other times He will not let us go back, for He besets behind and before. In His governmental ways with us He knows how to keep us from ways that would dishonour Him and bring shame and sorrow to our poor hearts; and betimes He puts, His hand upon us, so that we might feel that it is Himself that is dealing with us in wisdom and in love. Do we feel with the Psalmist that the knowledge of these things is too wonderful for us? How great God is! and yet to think He stoops to deal with puny mortals; with such insignificant individuals as we are. It is indeed wonderful that God should be so interested in the creatures of his hand. Yet it is so!
We have read in Psalm 138:8 of the works of God's hands. Now the psalmist considers God's works in the details of his own existence, and because God is Creator, He therefore penetrates those details fully and perfectly. Nothing is hid from Him, including the very thoughts of the heart.
But Jesus was present not only as the One to pardon iniquities and heal diseases (Ps. 103:3), but also as the One who searches the hearts, tries the reins and knows the inmost thoughts (Ps. 94:11; Jer. 17:10). He who saw the faith of the five men perceived the reasonings of the scribes in His own omniscient spirit (cp. John 2:24; John 6:61), and not by a power temporarily imparted to Him, as might have been the case with a prophet. None but God could penetrate the secret workings of man's spirit, as Solomon confessed in his prayer (1 Kings 8:39; 1 Chron. 28:9; 2 Chron. 6:30; Ezek. 11:5), and the Lord gave the Pharisees the proof of the nature of His person by answering their thoughts. Who else could "hear them thinking"?
In Matthew 9:4 the Lord Jesus knew and answered the thoughts of men, as in fact He did in various other cases. Even Satan does not know men's thoughts: only God does. This proves Him to be God: yet immediately after He refers to Himself as "the Son of Man" (v. 6).
We are the work of His hands. Here it is man as man, so that the earth out of which he was fashioned at first is as the womb out of which we were born. God has formed us, be it in the womb of dust or of our mother, the place where we were nothing before we were. The same God has ever thought of us along the road, and here confidence has been acquired; though thus acquired it reaches to all God's creative knowledge and power. If He sees in the dark, He keeps in the dark. When we awake, and so it will be in resurrection too, we are still with Him. He knows our thoughts, but thinks of us when we think not. Thus if God knows all our thoughts, and long before His are precious to us, to such the putting down of evil is the sure expectation, yea the call for judgment on the haters of the Lord, whom we therefore abhor.
All these things afford melancholy proof of how little we live, move and have our being in the presence of God. If we could only bear in mind that God hears us and sees us — hears our every word, and sees our every thought, our every way, how differently we should carry ourselves! What holy watchfulness we should maintain over our thoughts, our tempers, and our tongues! What purity of heart and mind! What truth and uprightness in all our intercourse with our fellows! What reality and simplicity in our deportment! What happy freedom from all affectation, assumption, and pretension! What deliverance from every form of self-occupation! Oh, to live ever in the deep sense of the divine presence! To walk in the fear of the Lord, all the day long!
Verses
- Mark 2:8And straightway Jesus, knowing in his spirit that they are reasoning thus within themselves, said to them, Why reason ye these things in your hearts?
- Romans 2:16in [the] day when God shall judge the secrets of men, according to my glad tidings, by Jesus Christ.
- Psalms 139:23–2423Search me, O God, and know my heart; prove me, and know my thoughts; 24And see if there be any grievous way in me; and lead me in the way everlasting.
- Psalms 139:1–41(To the chief Musician. A Psalm of David.) Jehovah, thou hast searched me, and known [me]. 2Thou knowest my down-sitting and mine uprising, thou understandest my thought afar off; 3Thou searchest out my path and my lying down, and art acquainted with all my ways; 4For there is not yet a word on my tongue, [but] lo, O Jehovah, thou knowest it altogether.