John 20:31

31 but these are written that you may believe that Jesus is the Christ, the Son of God, and that believing you may have life in His name.

John 20:31 In-Context

29 Jesus said to him, "Thomas, because you have seen Me, you have believed. Blessed are those who have not seen and yet have believed."
30 And truly Jesus did many other signs in the presence of His disciples, which are not written in this book;
31 but these are written that you may believe that Jesus is the Christ, the Son of God, and that believing you may have life in His name.
Scripture taken from the New King James Version. Copyright © 1982 by Thomas Nelson, Inc. Used by permission. All rights reserved.