John 3:30-33 He must increase, but I must decrease. He that come from above is above all: he that is of the earth is earthly, and speaks of the earth: he that comes from heaven is above all. And what he has seen and heard, that he testify; and no man receive his testimony. He that has received his testimony has set to his seal that God is true.
‘He must increase, but I must decrease’ Jesus must be exalted in our lives above all else. We are not to be arrogant and self-important, but to take a sane view of ourselves: that we cannot be complete without Him.
Christ that comes from above is above all, and He testified of what He has seen and heard, but men did not receive His testimony.
‘Set to his seal’ the Greek word sphragizo means to stamp, confirm, place beyond doubt. So for those who do accept Christ’s testimony, will confirm beyond doubt that God is true!