David the king said to all the assembly, Solomon my son, whom alone God has chosen, is yet young and tender, and the work is great; for the palace is not for man, but for Yahweh God.
These three men were prophets. They each wrote books, and of course, we have the books of Samuel, First and Second Samuel, the seer. But we do not have, and of course, even Samuel, Second Samuel wasn't written by him completely. We have the books. We do not have the book of Nathan and the book of Gad. They are lost books.