“We also joy in God through our Lord Jesus Christ, by whom we have now received the atonement.” – Romans 5:11
The doctrine of the atonement is very simple. Christ is treated as if He were the sinner, and the sinner is treated as if He were the righteous one.
It is a change of persons — Christ becomes the sinner; He stands in the sinner’s place; He was numbered with the transgressors; the sinner becomes righteous; He stands in Christ’s place, and is numbered with the righteous ones.
Christ has no sin of his own, but He takes human guilt, and is punished for human folly. We have no righteousness of our own but we take the divine righteousness; we are rewarded for it, and stand accepted before God as though that righteousness had been earned by ourselves.
“In due time Christ died for the ungodly,” (Romans 5:6) that He might take away their sins.
– Charles Spurgeon
I am not ashamed of the gospel of Christ, for it is the power of God to salvation for everyone who believes… (Rom 1:16)
From the Greek word evangelion, the “gospel” literally means “good news.” In ancient times, the evangelion would be proclaimed from city to city to celebrate the accession of the new king to the throne upon the death of the old.
And that is exactly what is being proclaimed in the gospel of Jesus: the gospel is the joyful proclamation of the reign of Christ , who lived and died and rose again to glory.
I declare to you the gospel which I preached to you, which also you received and in which you stand, by which also you are saved, if you hold fast that word which I preached to you—unless you believed in vain.
Christ died for our sins according to the Scriptures, and that He was buried, and that He rose again the third day according to the Scriptures. (1 Cor 15:1-4)
The gospel is the most powerful message of human liberation that has ever been proclaimed on earth. It is a message filled with the power of God to bring about the very thing it proclaims: freedom from bondage of our own sinfulness, freedom from fear of death, freedom to live boldly in the assurance of God’s love for us.
Learn more about the gospel: A Look At The Gospel (and how it works)