John 3:30 Meaning

28Ye yourselves bear me witness, that I said, I am not the Christ, but that I am sent before him.

29He that hath the bride is the bridegroom: but the friend of the bridegroom, which standeth and heareth him, rejoiceth greatly because of the bridegroom's voice: this my joy therefore is fulfilled.

30He must increase, but I must decrease.

31He that cometh from above is above all: he that is of the earth is earthly, and speaketh of the earth: he that cometh from heaven is above all.

32And what he hath seen and heard, that he testifieth; and no man receiveth his testimony.