Numbers 28:2-4

2Command the children of Israel, and say unto them, My offering, my bread for my offerings by fire of sweet odour to me, shall ye take heed to present to me at their set time.

3And say unto them, This is the offering by fire which ye shall present to Jehovah: two yearling lambs without blemish, day by day, as a continual burnt-offering.

4The one lamb shalt thou offer in the morning, and the other lamb thou shalt offer between the two evenings;