The ashes which the fire hath consumed — That is, the wood consumed into ashes.
Related Commentaries of Leviticus 6:10
Leviticus 6:10
10 And the priest shall put on his linen garment, and his linen breeches shall he put upon his flesh, and take up the ashes which the fire hath consumed with the burnt offering on the altar, and he shall put them beside the altar.