2 Samuel 12:25

he sent by the hand of Nathan, &c. Jehovah commissioned Nathan (for the phrase cp. Exodus 4:13) to give the boy a second name, which he did accordingly. This is the meaning of the text as it stands: but some commentators would alter it slightly in accordance with the Vulgate, and render he(David) committed him to the hand of Nathan, that he might take charge of his education. But the explanation is doubtful, and there is no further trace of the fact, though it has been very generally supposed that Nathan was Solomon's tutor.

Jedidiah That is Beloved of Jah.Cp. Deuteronomy 33:12; Psalms 127:2. It is derived from the same root as David, which means belovedor darling. The name was given "because of the Lord," i.e. because Jehovah loved the child; and it served as a pledge to David that he was again fully received into God's favour.