1 Corinthians 15:1-6

Now, brothers and sisters, I want you to remember the Good News I brought to you. You received this Good News and continue strong in it. And you are being saved by it if you continue believing what I told you. If you do not, then you believed for nothing. I passed on to you what I received, of which this was most important: that Christ died for our sins, as the Scriptures say; that he was buried and was raised to life on the third day as the Scriptures say; and that he was seen by Peter and then by the twelve apostles. After that, Jesus was seen by more than five hundred of the believers at the same time. Most of them are still living today, but some have died.