Exodus 29:38

“Now this is that which thou shalt offer upon the altar; two lambs of the first year day by day continually.”

Leviticus 4:32

“And if he bring a lamb for a sin offering, he shall bring it a female without blemish.”

Leviticus 12:6

“And when the days of her purifying are fulfilled, for a son, or for a daughter, she shall bring a lamb of the first year...”

Leviticus 14:10

“And on the eighth day he shall take two he lambs without blemish, and one ewe lamb of the first year without blemish, an...”

Leviticus 14:21

“And if he be poor, and cannot get so much; then he shall take one lamb for a trespass offering to be waved, to make an a...”