1 Corinthians 15:3

³ For what I received I passed on to you as of first importance^[a]: that Christ died for our sins according to the Scriptures

Romans 5:6-8

⁶ You see, at just the right time, when we were still powerless, Christ died for the ungodly. ⁷ Very rarely will anyone die for a righteous person, though for a good person someone might possibly dare to die. ⁸ But God demonstrates his own love for us in this: While we were still sinners, Christ died for us.

1 Peter 1:3

³ Praise be to the God and Father of our Lord Jesus Christ! In his great mercy he has given us new birth into a living hope through the resurrection of Jesus Christ from the dead

1 Thessalonians 4:14

¹⁴ For we believe that Jesus died and rose again, and so we believe that God will bring with Jesus those who have fallen asleep in him.