When Sheri got engaged, her single friend Amy celebrated with her. She planned a bridal shower, helped pick out her wedding dress, walked down the aisle just before her, and stood by her side during the ceremony. When Sheri and her husband had children, Amy gave baby showers and rejoiced in her friend’s blessings.
Sheri told Amy later, “You’ve comforted me during hard times, but the way I especially know you love me is that you rejoice with me in my good times. You haven’t let any jealousy hold you back from celebrating with me.”
When John’s disciples heard that a new rabbi named Jesus was gaining followers, they thought John might be jealous (John 3:26). They came to him and said, “He is baptizing, and all are coming to Him!” But John celebrated Jesus’ ministry. He said, “I have been sent before Him. . . . The friend of the bridegroom, who stands and hears him, rejoices greatly because of the bridegroom’s voice. Therefore this joy of mine is fulfilled” (vv.28-29).
An attitude of humility should also characterize us. Rather than desiring attention for ourselves, everything we do should bring glory to our Savior. “He must increase, but I must decrease” (v.30).

Not I but Christ be honored, loved, exalted;
Not I but Christ be seen, be known, be heard;
Not I but Christ in every look and action;
Not I but Christ in every thought and word. —Whiddington

If we want an increase of Christ, there must be a decrease of self.