19 distinct Hebrew words appear in this verse.

• Joy
• Obedience and Disobedience
• Righteousness
• Worship

2 passages from patristic writers, Reformers, and church catechisms citing this verse.

• 1Chr 28:9 — And thou, Solomon my son, know thou the God of thy father, and serve him with a perfect heart and with a willing mind: for the LORD searcheth all hearts, and understandeth all the imaginations of the
• 1Chr 28:9 — And thou, Solomon my son, know thou the God of thy father, and serve him with a perfect heart and with a willing mind: for the LORD searcheth all hearts, and understandeth all the imaginations of the
• 1Chr 29:9 — Then the people rejoiced, for that they offered willingly, because with perfect heart they offered willingly to the LORD: and David the king also rejoiced with great joy.
• 1Sam 16:7 — But the LORD said unto Samuel, Look not on his countenance, or on the height of his stature; because I have refused him: for the LORD seeth not as man seeth; for man looketh on the outward appearance,
• 1Thess 2:4 — But as we were allowed of God to be put in trust with the gospel, even so we speak; not as pleasing men, but God, which trieth our hearts.
• 1Thess 2:10 — Ye are witnesses, and God also, how holily and justly and unblameably we behaved ourselves among you that believe:
• 2Chr 1:11 — And God said to Solomon, Because this was in thine heart, and thou hast not asked riches, wealth, or honour, nor the life of thine enemies, neither yet hast asked long life; but hast asked wisdom and
• 2Cor 1:12 — For our rejoicing is this, the testimony of our conscience, that in simplicity and godly sincerity, not with fleshly wisdom, but by the grace of God, we have had our conversation in the world, and mor
• 2Cor 9:7 — Every man according as he purposeth in his heart, so let him give; not grudgingly, or of necessity: for God loveth a cheerful giver.
• 2Tim 2:22 — Flee also youthful lusts: but follow righteousness, faith, charity, peace, with them that call on the Lord out of a pure heart.
• Deut 30:2 — And shalt return unto the LORD thy God, and shalt obey his voice according to all that I command thee this day, thou and thy children, with all thine heart, and with all thy soul;
• Exod 35:29 — The children of Israel brought a willing offering unto the LORD, every man and woman, whose heart made them willing to bring for all manner of work, which the LORD had commanded to be made by the hand
• Heb 4:12 — For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoug
• Heb 10:22 — Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water.
• Isa 26:7 — The way of the just is uprightness: thou, most upright, dost weigh the path of the just.
• Jer 11:20 — But, O LORD of hosts, that judgest righteously, that triest the reins and the heart, let me see thy vengeance on them: for unto thee have I revealed my cause.
• Jer 17:10 — I the LORD search the heart, I try the reins, even to give every man according to his ways, and according to the fruit of his doings.
• Jer 17:10 — I the LORD search the heart, I try the reins, even to give every man according to his ways, and according to the fruit of his doings.
• Job 22:3 — Is it any pleasure to the Almighty, that thou art righteous? or is it gain to him, that thou makest thy ways perfect?
• John 1:47 — Jesus saw Nathanael coming to him, and saith of him, Behold an Israelite indeed, in whom is no guile!
• John 2:24 — But Jesus did not commit himself unto them, because he knew all men,
• John 4:23 — But the hour cometh, and now is, when the true worshippers shall worship the Father in spirit and in truth: for the Father seeketh such to worship him.
• Luke 16:15 — And he said unto them, Ye are they which justify yourselves before men; but God knoweth your hearts: for that which is highly esteemed among men is abomination in the sight of God.
• Matt 5:8 — Blessed are the pure in heart: for they shall see God.
• Neh 4:6 — So built we the wall; and all the wall was joined together unto the half thereof: for the people had a mind to work.
• Phlm 1:7 — For we have great joy and consolation in thy love, because the bowels of the saints are refreshed by thee, brother.
• Phlm 1:14 — But without thy mind would I do nothing; that thy benefit should not be as it were of necessity, but willingly.
• Prov 11:20 — They that are of a froward heart are abomination to the LORD: but such as are upright in their way are his delight.
• Prov 11:20 — They that are of a froward heart are abomination to the LORD: but such as are upright in their way are his delight.
• Prov 15:8 — The sacrifice of the wicked is an abomination to the LORD: but the prayer of the upright is his delight.
• Prov 17:3 — The fining pot is for silver, and the furnace for gold: but the LORD trieth the hearts.
• Ps 5:4 — For thou art not a God that hath pleasure in wickedness: neither shall evil dwell with thee.
• Ps 18:23 — I was also upright before him, and I kept myself from mine iniquity.
• Ps 51:6 — Behold, thou desirest truth in the inward parts: and in the hidden part thou shalt make me to know wisdom.
• Ps 51:6 — Behold, thou desirest truth in the inward parts: and in the hidden part thou shalt make me to know wisdom.
• Rev 2:23 — And I will kill her children with death; and all the churches shall know that I am he which searcheth the reins and hearts: and I will give unto every one of you according to your works.
• Rom 2:29 — But he is a Jew, which is one inwardly; and circumcision is that of the heart, in the spirit, and not in the letter; whose praise is not of men, but of God.
• Rom 8:27 — And he that searcheth the hearts knoweth what is the mind of the Spirit, because he maketh intercession for the saints according to the will of God.