'Inexperienced' in the Bible

David said, “My son Solomon is young and inexperienced, and the house that is to be built for the Lord shall be exceedingly magnificent, famous and glorious throughout all lands. Therefore now I will make preparation for it.” So David made ample preparations before his death.

Then King David said to the entire assembly, “My son Solomon, whom alone God has chosen, is still young and inexperienced and the work is great; for the temple is not for man, but for the Lord God.