'Finish' in the Bible

Solomon made an alliance by marriage with Pharaoh, king of Egypt; he married Pharaoh's daughter. He brought her to the City of David until he could finish building his residence and the temple of the Lord and the wall around Jerusalem.

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].

It took 20 years for Solomon to finish working on the two houses the LORD's Temple and the royal palace