Saul reigned one year; and when he had reigned two years over Israel,
Referenced Verses
Exod 12:5 : 5 Your lamb shall be without blemish, a male of the first year: ye shall take it out from the sheep, or from the goats:
Mic 6:6 : 6 Wherewith shall I come before the LORD, and bow myself before the high God? shall I come before him with burnt offerings, with calves of a year old?