Using imagery from Isaiah 53 as well as from other Bible passages, the text sets forth the Christian doctrine of Christ's atonement: Christ died for the sin of the world in a substitutionary death on the cross. The most striking aspect of the text is its personalization: it was for my sin that Christ died! Thus a generic doctrine has become a deeply personal confession and profound meditation.
Psalter Hymnal Handbook
This song reflects the narrative of the suffering and death of Christ on Calvary, events whose significance and purpose is deepened by the confessions of the church. Heidelberg Catechism, Lord’s Days 15-16, Questions and Answers 37-44 explain the significance of each step of his suffering. Question and Answer 40 testifies that Christ had to suffer death “because God’s justice and truth require it; nothing else could pay for our sins except the death of the son of God.”
The Belgic Confession, Article 20 professes that “God made known his justice toward his Son…poured out his goodness and mercy on us…giving to us his Son to die, by a most perfect love, and raising him to life for our justification, in order that by him we might have immortality and eternal life.”
Consider also the testimony of Belgic Confession, Article 21: “He endured all this for the forgiveness of our sins.”