Jesus Christ became a sacrifice for our sins. How?
The eternal Son of God (who is uncreated, has no beginning, has no end) took on our human nature. This is Jesus, the man of Nazareth whom everyone knew; at the same time, the same Jesus of Nazareth is true God.
This Jesus chose to live in the nature of a servant, choosing to abstain for a while from using his divine glory.
In this state, as a servant, Jesus Christ submitted to the will of his heavenly Father – becoming obedient to death, even the death of the cross.
Perfect man, true God, whose death has been counted as yours – and whose perfect life is also counted as yours. Thanks be to God!