Week 21: What must the Redeemer be truly human?

Why must the Redeemer be truly human?

Hebrews 2:17
For this reason he had to be made like them, fully human in every way, in order that he might become a merciful and faithful high priest in service to God, and that he might make atonement for the sins of the people.

That in human nature he might on our behalf perfectly obey the whole law and suffer the punishment for human sin.

Savior and mighty Deliverer, Jesus—your name is full of love, comfort, and confidence to every sinner that takes refuge in it. You obeyed the whole law on our behalf. You suffered the punishment for our sins. You have redeemed us. Thank you that your goodness and power are boundless, and your mercy is infinite. Amen.