1 Corinthians 15:3-4
3 For what I received I passed on to you as of first importance: that Christ died for our sins according to the Scriptures, 4 that he was buried, that he was raised on the third day according to the Scriptures,
The central theme of the gospel is given in these verses, a key text for the defense of Christianity. The first most important point is:
(1) Christ died for our sins according to the Scriptures. Without the truth of this message, Christ’s death was worthless, and those who believe in Him are still in their sins and without hope. However, Christ as the sinless Son of God took the punishment of sin so that those who believe can have their sins removed. “The Scriptures” refers to Old Testament prophecies such as Psalm 16:8-11 and Isaiah 53:5-6:
With him at my right hand, I will not be shaken.
my body also will rest secure,
nor will you let your faithful one see decay.
you will fill me with joy in your presence,
with eternal pleasures at your right hand.
he was crushed for our iniquities;
and by his wounds we are healed.
each of us has turned to our own way;
the iniquity of us all.
Christ’s death on the cross was no accident or afterthought. It had been part of God’s plan from all eternity in order to bring about the salvation of all who believe.