Exodus 12:5 Your lamb shall be without blemish, a male of the first year; ye shall take it from the sheep, or from the goats; (See NIV)
Leviticus 12:6 And when the days of her purification are fulfilled, for a son, or for a daughter, she shall bring a lamb of the first year for a burnt-offering, and a young pigeon, or a turtle-dove, for a sin-offering, unto the door of the tent of meeting, unto the priest. (See NIV)
Numbers 6:12 And he shall consecrate unto the LORD the days of his Naziriteship, and shall bring a he-lamb of the first year for a guilt-offering; but the former days shall be void, because his consecration was defiled. (See NIV)
Numbers 6:14 and he shall present his offering unto the LORD, one he-lamb of the first year without blemish for a burnt-offering, and one ewe-lamb of the first year without blemish for a sin-offering, and one ram without blemish for peace-offerings, (See NIV)
Numbers 15:27 And if one person sin through error, then he shall offer a she-goat of the first year for a sin-offering. (See NIV)
Ezekiel 46:13 And a lamb, son of a year, a perfect one, thou dost make a burnt-offering daily to Jehovah; morning by morning thou dost make it. (See NIV)