Albert Barnes on John 3:32

And what he hath seen, &c. See Jn 3:11.

No man receiveth his testimony. The words no man are here to be under stood 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 (Jn 6:26), yet few became his real disciples, Mt 26:56, 7:22.

His testimony. His doctrine. The truth to which he bears witness as having seen and known it, Jn 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, Mt 13:6; Lk 8:13.

(h) "no man" Jn 1:11