'Fire offerings' in the Bible

This is to be yours of the most holy things, out of the fire offerings; every offering of theirs, every meal offering and sin-offering, and every offering which they make on account of error, is to be most holy for you and your sons.

'Command the sons of Israel, and thou hast said unto them, My offering, My bread for My fire-offerings, My sweet fragrance, ye take heed to bring near to Me in its appointed season.