Leviticus 1:17

1:17 and tear it open by its wings without dividing it into two parts. Finally, the priest must offer it up in smoke on the altar on the wood which is in the fire – it is a burnt offering, a gift of a soothing aroma to the Lord.

Leviticus 9:24

9:24 Then fire went out from the presence of the Lord and consumed the burnt offering and the fat parts on the altar, and all the people saw it, so they shouted loudly and fell down with their faces to the ground.

Leviticus 10:15

10:15 The thigh of the contribution offering and the breast of the wave offering they must bring in addition to the gifts of the fat parts to wave them as a wave offering before the Lord, and it will belong to you and your sons with you for a perpetual statute just as the Lord has commanded.”