"...that 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 Corinthians 15:3-4)
What must I do?
...Jesus came to Galilee, preaching the gospel of the kingdom of God, and saying,"The time is fulfilled, and the kingdom of God is at hand. REPENT, and BELIEVE in the GOSPEL.” (Mark 1:14-15 emphasis added)
What is God's promise to me?
"...that if you confess with your mouth the Lord Jesus and believe in your heart that God has raised Him from the dead, you will be saved." (Romans 10:9)