John 3:32 And what he hath seen and heard, that he testifieth; and no man receiveth his testimony.
No man receiveth his testimony – The words “no man” are here to be understood in the sense of “few.” Though his doctrine is pure, plain, sublime, yet “few,” comparatively, received it in faith. Though multitudes came to him, drawn by various motives John 6:26, yet “few” became his “real” disciples, Matthew 26:56; Matthew 7:22.
His testimony – His doctrine. The truth to which he bears “witness” as having “seen” and “known” it, John 3:11. Often many persons “appear” for a time to become the followers of Christ, who in the end are seen to have known nothing of religion, Matthew 13:6; Luke 8:13.
Matthew Henry Commentary:
From the certainty of Christ’s doctrine, John takes occasion,
[1.] To lament the infidelity of the most of men: though he testifies what is infallibly true, yet no man receiveth his testimony, that is, very few, next to none, none in comparison with those that refuse it.
They receive it not, they will not hear it, they do not heed it, or give credit to it.
This he speaks of not only as a matter of wonder, that such a testimony should not be received (Who hath believed our report? How stupid and foolish are the greatest part of mankind, what enemies to themselves!) but as matter of grief; John’s disciples grieved that all men came to Christ (v. 26); they thought his followers too many. But John grieves that no man came to him; he thought them too few.
Note, The unbelief of sinners is the grief of saints. It was for this that St. Paul had great heaviness, Rom. 9:2. [2.] He takes occasion to commend the faith of the chosen remnant (v. 33): He that hath received his testimony (and some such there were, though very few) hath set to his seal that God is true. God is true, though we do not set our seal to it; let God be true, and every man a liar;