Acts 20:24 - But none of these things move me; nor do I count my life dear to myself, so that I may finish my race with joy and the ministry which I received from the Lord Jesus, to testify to the gospel of the grace of God.

Grace, by definition, is undeserved favor (approval, kindness, forgiveness), which is exactly what God has done for us in sending Jesus to die on the cross as payment for our sins. We do deserve to be punished for our sins, but God knew the price was just too steep for us to pay, so He and Jesus paid it for us.