Leviticus 1:8

1:8 Then the sons of Aaron, the priests, must arrange the parts with the head and the suet on the wood that is in the fire on the altar.

Leviticus 1:12

1:12 Next, the one presenting the offering must cut it into parts, with its head and its suet, and the priest must arrange them on the wood which is in the fire, on the altar.