Numbers 28:2-4

2“Command the children of Israel, and say to them, ‘My offering, My food for My offerings made by fire as a sweet aroma to Me, you shall be careful to offer to Me at their appointed time.’

3“And you shall say to them, ‘This is the offering made by fire which you shall offer to the Lord: two male lambs in their first year without blemish, day by day, as a regular burnt offering.

4The one lamb you shall offer in the morning, the other lamb you shall offer in the evening,