In Genesis 3, Adam and Eve sought to “be like God”–or rather, they sought to be their own gods by declaring themselves king and queen in His rightful, exclusive place. We are guilty of doing the same thing. Yet, Jesus being in the form of God (Phil 2), because He existed as the eternal Son of God, did not exploit that glory for Himself. In fact, He humbled Himself by coming to earth in human form and taking the nature of a servant and dying on the Cross, a sinner’s death in our place. He took our curse so that we might receive His blessing; He became our sin so that we might become the righteousness of God. His vicarious death and resurrection reverses the curse for us.
John Stott, The Cross of Christ:
“For the essence of sin is man substituting himself for God [Gen. 3:1-7], while the essence of salvation is God substituting himself for man [2 Cor. 5:21]. Man asserts himself against God and puts himself where only God deserves to be; God sacrifices himself for man and puts himself where only man deserves to be.”
Praise be to God for the substitutionary life, death, and resurrection of our Lord and Savior, Jesus Christ, the One who loved us and gave Himself for us (Eph. 5). He endured the terrors of hell so that we might experience the joys of heaven. Amen.
 John Stott, The Cross of Christ (Downers Grove: Inter Varsity Press, 1986), 160.