He Must Increase

25 Now a discussion arose between some of John's disciples and a Jew over purification. 26 And they came to John and said to him, "Rabbi, he who was with you across the Jordan, to whom you bore witness-look, he is baptizing, and all are going to him." 27 John answered, "A person cannot receive even one thing unless it is given him from heaven. 28 You yourselves bear me witness, that I said, 'I am not the Christ, but I have been sent before him.' 29 The one who has the bride is the bridegroom. The friend of the bridegroom, who stands and hears him, rejoices greatly at the bridegroom's voice. Therefore this joy of mine is now complete. 30 He must increase, but I must decrease." - John 3:25-30

If Jesus is the center of our lives he will produce his fruit through us.

“Jesus is the center to us as individuals as well. The call to a nonChristian is to make Jesus the center of his life. The call to Christians is to remember that He is the center. We think of His finished work on the cross, for if Jesus’ death is not the center of our hope of being accepted by God, we are lost. It is as simple as that. If we bring in humanistic things and in any way make them the center, our hope is destroyed. But Jesus is not to be the center only at conversion. He is to be central in our living as well, in both comprehension and practice. God the Father told the disciples, “Hear him.”
But Christian faith is not only a matter of knowledge. Christ must be the center of a Christian’s life. True spirituality is not our producing something in the external world, but Christ’s producing His fruit through us. This He does through the indwelling of the Holy Spirit as we put ourselves in His hands.” No Little People - Francis Schaeffer