Catechism Insight – Doctrinal Standard WSC #22

Doctrinal Standard #22 (2 of 2 weeks)

  • Q. How did Christ, the Son of God, become man?
  • A. Christ, the Son of God, became man by assuming a real body and a reasoning soul. He was conceived by the power of the Holy Spirit in the womb of the Virgin Mary, who gave birth to Him; yet He was sinless.

Memory Verses

  • “For it was indeed fitting that we should have such a high priest, holy, innocent, unstained, separated from sinners, and exalted above the heavens” (Hebrews 7:26, ESV).


  • Study Passage: 1 Peter 2:11-25
    • Support Passages: Isaiah 53:9-12; Matthew 26:59-68; John 18:33-40; Romans 8:3; II Corinthians 5:21; Galatians 4:4-5; Hebrews 7:26-28; I John 3:5
    • Bible Story: John 5:1-18


  • It is difficult to fathom living a whole life without sin let alone a day, hour, or minute! But our Lord Jesus lived a sinless life and it was for our benefit.
  • Wayne Grudem explains this truth rather well in his chapter on the Atonement. “If Christ had only earned forgiveness of sins for us, then we would not merit heaven. Our guilt would have been removed, but we would simply be in the position of Adam and Eve before they had done anything good or bad and before they had passed a time of probation successfully. To be established in righteousness forever and to have their fellowship with God made sure forever, Adam and Eve had to obey God perfectly over a period of time. Then God would have looked on their faithful obedience with pleasure and delight, and they would have lived with him in fellowship forever.”
  • “For this reason, Christ had to live a life of perfect obedience to God in order to earn righteousness for us. He had to obey the law for his whole life on our behalf so that the positive merits of his perfect obedience would be counted for us.” Martin Luther refers to this as the “Great Exchange.” [1] Christ’s righteousness is placed upon the believer as the believers sins are placed upon Christ on the cross. Praise God for the perfect life and sacrifice of Jesus Christ!

Discussion Questions

  • Did Jesus every sin? Explain the various struggles and temptations He must have faced.
  • What is the significance or importance’s of Jesus living a sinless life?
  • What did Jesus’ sinless life do for those who believe in Him?
  • What did Martin Luther mean when he said Jesus’ life and death is the “Great Exchange?”

[1] Grudem, Wayne (1994). Systematic Theology. Grand Rapids, Michigan, USA; Zondervan Publishing House.

"Him we proclaim,
warning everyone and teaching everyone with all wisdom,
that we may present everyone mature in Christ."
(Colossians 1:28, ESV)

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