'Experience' in the Bible

So now, O Lord my God, You have made Your servant king in place of David my father; and as for me, I am but a little boy [in wisdom and experience]; I do not know how to go out or come in [that is, how to conduct business as a king].

Now, O God of Israel, please let Your word which You have spoken to Your servant David my father be confirmed.

A man of God approached and said to the king of Israel, “Thus says the Lord, ‘Because the Arameans have said, “The Lord is a god of the hills, but He is not a god of the valleys,” I will give this great army into your hand, and you shall know [by experience] that I am the Lord.’”