A proxy is someone who stands in on your behalf, a substitute, an intermediary, a stand-in. Jesus became the proxy for us when he paid the penalty for our sin and rebellion to God. There were actually two parts to the substitution that Jesus performed on the cross. First, he paid the price for our sins. Romans 6:23 “the wages of sin is death.” Since we all sin, we all come under the penalty of sin: death. But before the world was created, God (including the Word: the Son) established a plan of salvation for mankind. It involves substitution. Hebrews 9:22 “According to the Law, one may almost say, all things are cleansed with blood, and without the shedding of blood there is no forgiveness of sin.” No animal could stand in for mankind: “For it is impossible for the blood of bulls and goats to take away sins”, Hebrews 10:4. No angel could stand in for mankind, since angels are created like us. An angel might stand proxy for one man but never for all. But Jesus offered himself: When John the Baptist saw Jesus passing he said, “Behold the Lamb of God, that takes away the sin of the world”, John 1:29. Jesus had no sin, thus “he made him to be sin who knew no sin, so that in him we might become the righteousness of God”, 2 Corinthians 5:21. It was entirely voluntary: “For this reason the Father loves me, because I lay down my life that I may take it up again. No one takes it from me, but I lay it down of my own accord. I have authority to lay it down, and I have authority to take it up again. This charge I have received from my Father”, John 10:17, 18. Second, Jesus’ death on the cross established a covenant between God and believers. His blood is called the “blood of the covenant”, Luke 22:20. This new covenant furnishes everything that was lacking with the first: “Christ has obtained a ministry that is as much more excellent than the old as the covenant he mediates is better, since it is enacted on better promises”, Hebrews 8:6. We have every reason to rejoice at what Jesus secured for us through his sacrifice and to praise God for his goodness and his love.