John 3:28-30

You yourselves are my witnesses that I said, ‘I am not the Messiah, but I have been sent ahead of him.’ The bridegroom is the one to whom the bride belongs; but the bridegroom's friend, who stands by and listens, is glad when he hears the bridegroom's voice. This is how my own happiness is made complete. He must become more important while I become less important.”