Jesus answered him, "Most assuredly, I tell you, unless one is born anew,{The word translated "anew" here and in John 3:7 (anothen) also means "again" and "from above".} he can't see the Kingdom of God."
Beautiful humility of John in taking his rightful place. He said, "You bear witness that I testified of him. Now, look, He's the bridegroom and I'm just the best man. It's the bridegroom that takes the bride. But His best man rejoices when he hears Him. And herein, I rejoice because of the bridegroom's voice, and my joy, therefore, is fulfilled." How? In bringing honor and glory to Jesus. "For He must increase and I must decrease." So say we all!