Ezekiel 43:21

Thou shalt take the bullock also of the sin offering, and he shall burn it in the appointed place of the house, without the sanctuary.

Cross-reference

Exodus 29:14 gives the same command to burn the sin offering bull outside the camp, forming the legal basis for this instruction.

Leviticus 4:12 likewise requires burning the sin offering bull outside the camp in a clean place, mirroring this purification ritual.

Leviticus 8:17 records the same practice during Aaron's consecration — burning the bull outside the camp — showing consistent OT procedure.

Hebrews 13:11 directly references the OT practice of burning sin offerings outside the camp, which this verse commands, as background for Christ's sacrifice.

Hebrews 13:12 applies this burning-outside-the-camp pattern to Jesus suffering outside the gate, interpreting the OT ritual as a type of Christ.