The king said moreover to Shimei,.... Not as another reason for his putting him to death, but to remind him of his former sins, and to observe to him the providence of God in suffering him to fall into others, that justice might take place upon him for them also:

thou knowest all the wickedness which thine heart is privy to, that thou didst to David my father; which conscience must bear witness to, and accuse him of, not only of the words and actions themselves uttered and done by him, but of the malice and wickedness from whence they sprung:

therefore the Lord shall return thy wickedness upon thine own head; the punishment of it; which though not directly inflicted for that, yet in providence was brought about as a just retaliation for it.

He then reminded him of the evil which he had done to his father: "Thou knowest all the evil, which thy heart knoweth (i.e., which thy conscience must tell thee); and now Jehovah returns the evil upon thy head," namely, by decreeing the punishment of death, which he deserved for blaspheming the anointed of the Lord (2 Samuel 16:9).

The king said moreover to Shimei, {u} Thou knowest all the wickedness which thine heart is privy to, that thou didst to David my father: therefore the LORD shall return thy wickedness upon thine own head;

(u) For though you would deny it, your own conscience accuses you for reviling and doing wrong to my father, 2Sa 16:5.

2:44 Thine heart - For which thine own conscience accuseth thee, and there is no need of other witnesses. The Lord - God hath punished thee for thy former wickedness, by suffering thee to expose thyself to thy deserved death.

2:35-46 The old malignity remains in the unconverted heart, and a watchful eye should be kept on those who, like Shimei, have manifested their enmity, but have given no evidence of repentance. No engagements or dangers will restrain worldly men; they go on, though they forfeit their lives and souls. Let us remember, God will not accommodate his judgment to us. His eye is over us; and let us strive to walk as in his presence. Let our every act, word, and thought, be governed by this great truth, that the hour is quickly coming when the smallest circumstances of our lives shall be brought to light, and our eternal state be fixed by a righteous and unerring God. Thus Solomon's throne was established in peace, as the type of the Redeemer's kingdom of peace and righteousness. And it is a comfort, in reference to the enmity of the church's enemies, that, how much soever they rage, it is a vain thing they imagine. Christ's throne is established, and they cannot shake it.