That makes no sense....The sin offering was symbolic.
Heb 10:The law (here Paul is speaking of the sacrificial laws) is only a shadow of the good things that are coming—not the realities themselves (i.e,. Christ). For this reason it can never, by the same sacrifices repeated endlessly year after year, make perfect those who draw near to worship. 2 Otherwise, would they not have stopped being offered? For the worshipers would have been cleansed once for all (from sin), and would no longer have felt guilty for their sins.3 But those sacrifices are an annual reminder of sins.4 It is impossible for the blood of bulls and goats to take away sins.5 Therefore, when Christ came into the world, he said: “Sacrifice and offering you did not desire, but a body you prepared for me..."
"A body you prepared for me"?
1] What "body"?
2] Who is "me"?
3] Who is "you"?
Answer to # 1: Rom 6:6 "..."our oldself was crucified with Him, in order that our body of sin might be done away with..." Christ, as God, assumed our "body of sin" at the incarnation. "Body of sin" means a body indwelt with our bent (iniquity), but in Christ's case that "bent" never had its way with Him. Therefore He perfectly obeyed God's law.
Answer to # 2: Christ as God. The Deity of Christ, the Son of God.
Answer to # 3: God the Father
So here's how I read Hebrews 10:5
So God the Father united the Deity of Christ to our "body of sin" and thus Christ also became "the Son of Man".