'Begin' in the Bible

And the people and princes of Gilead said one to another, What man is he that will begin to fight against the children of Ammon? he shall be head over all the inhabitants of Gilead.

For, lo, thou shalt conceive, and bear a son; and no rasor shall come on his head: for the child shall be a Nazarite unto God from the womb: and he shall begin to deliver Israel out of the hand of the Philistines.