Komentaryo sa Mga Awit 3:3: Rashi, Radak & Ibn Ezra

say concerning my soul Heb. לנפשי, concerning my soul.

Many there are which say of my soul (לנפשי): – that is, “about my soul,” as “Say concerning me (לי), He is my brother” (Gen. 20:13); “and the men of the place asked of his wife (לאשתו)” (ibid. 26:7), and such like. And the reason: because many of the wise ones of Israel, as Ahithophel and others, were of opinion that this punishment came to him on account of the affair of Bathsheba, as was actually the case; and they were thinking likewise that the kingdom would never return to him; therefore they followed Absalom and rebelled against him, and were saying that for him there was no portion in the world to come. Therefore he says of my soul. And he says:

Of me (לְנַפְשִׁי - le-nafshi, lit. "to my soul"): [The Lamed prefix means] "concerning" my soul/me. [This usage is] similar to (Exodus 14:3) "And Pharaoh will say concerning (li-) the children of Israel..." [and (Genesis 20:13)] "Say of (li) me, 'He is my brother.'"

“He has no salvation in God to eternity” Because he was intimate with a married woman.