KJV: For it came to pass, when Solomon was old, that his wives turned away his heart after other gods: and his heart was not perfect with the LORD his God, as was the heart of David his father.
NASB: For when Solomon was old, his wives turned his heart away after other gods; and his heart was not wholly devoted to the LORD his God, as the heart of David his father had been.
KJV: And he walked in all the sins of his father, which he had done before him: and his heart was not perfect with the LORD his God, as the heart of David his father.
NASB: He walked in all the sins of his father which he had committed before him; and his heart was not wholly devoted to the LORD his God, like the heart of his father David.
KJV: I beseech thee, O LORD, remember now how I have walked before thee in truth and with a perfect heart, and have done that which is good in thy sight. And Hezekiah wept sore.
NASB: "Remember now, O LORD, I beseech You, how I have walked before You in truth and with a whole heart and have done what is good in Your sight." And Hezekiah wept bitterly.
KJV: All these men of war, that could keep rank, came with a perfect heart to Hebron, to make David king over all Israel: and all the rest also of Israel were of one heart to make David king.
NASB: All these, being men of war who could draw up in battle formation, came to Hebron with a perfect heart to make David king over all Israel; and all the rest also of Israel were of one mind to make David king.
KJV: 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 thoughts: if thou seek him, he will be found of thee; but if thou forsake him, he will cast thee off for ever.
NASB: "As for you, my son Solomon, know the God of your father, and serve Him with a whole heart and a willing mind; for the LORD searches all hearts, and understands every intent of the thoughts. If you seek Him, He will let you find Him; but if you forsake Him, He will reject you forever.
KJV: 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.
NASB: Then the people rejoiced because they had offered so willingly, for they made their offering to the LORD with a whole heart, and King David also rejoiced greatly.
KJV: And give unto Solomon my son a perfect heart, to keep thy commandments, thy testimonies, and thy statutes, and to do all these things, and to build the palace, for the which I have made provision.
NASB: and give to my son Solomon a perfect heart to keep Your commandments, Your testimonies and Your statutes, and to do them all, and to build the temple, for which I have made provision."
KJV: Now all the work of Solomon was prepared unto the day of the foundation of the house of the LORD, and until it was finished. So the house of the LORD was perfected.
NASB: Thus all the work of Solomon was carried out from the day of the foundation of the house of the LORD, and until it was finished. So the house of the LORD was completed.