“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 (WEB)
Context Reading
29Jesus said to him,“Because you have seen me,you have believed. Blessed are those who have not seen and have believed.” 30Therefore Jesus did many other signs in the presence of his disciples, which are not written in this book; 31but 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.