'Begun' in the Bible

beyond the Jordan, in the land of Moab, hath Moses begun to explain this law, saying:

And the LORD said unto me, Behold, I have begun to give Sihon and his land before thee: begin to possess, that thou mayest inherit his land.

O Lord GOD, thou hast begun to shew thy servant thy greatness, and thy mighty hand: for what God is there in heaven or in earth, that can do according to thy works, and according to thy might?

Has any man planted a vineyard and not begun to enjoy its fruit? Let him leave and return home. Otherwise he may die in battle and another man enjoy its fruit.