'Bridegroom' in the Bible

When the man in charge of the banquet tasted the water that had become wine (without knowing where it had come from, though the servants who had drawn the water knew), he called for the bridegroom

It is the bridegroom who gets the bride, yet the bridegroom's friend, who merely stands by and listens for him, is overjoyed to hear the bridegroom's voice. That's why this joy of mine is now complete.