Numbers 28:1-4

Then the LORD spoke to Moses, saying, “Command the Israelites and say to them, ‘You shall be careful to present at its appointed time [during the year] My offering, My food for My offerings by fire as a sweet and soothing aroma to Me.’ You shall say to the people, ‘This is the offering by fire which you shall present to the LORD every day: two male lambs one year old without blemish as a continual burnt offering. You shall offer one lamb in the morning and you shall offer the other lamb at twilight