John 3:33 - Ellicott's Commentary On The Whole Bible

He that hath received. — Better, he that received. “Hath set to his seal,” better, set his seal. It had been so. Earlier disciples, as Andrew and John (John 1:40), had passed from the Forerunner to the Great Teacher, and had heard in His words that which went to the divine in their own spirits, and had come from the short first meeting with the conviction, “We have found the Messias.” They received the witness, and, as they heard it, they too became witnesses. Just as a man sets his private seal — here, probably, the common Eastern stamp that affixed the name is thought of — and by it attests the truth of a document, so they attested, in the power which that witness had over their lives, their recognition of it as truth. It has always been so. The moral fitness of Christianity to meet the spiritual needs of men, and its moral power over the lives of men in all the varying circumstances of culture, race, and creed, has raised up in every age an holy army of witnesses, who have set their seal to its divine truth. (Comp. for the thought of sealing, John 6:27; Romans 4:11; Romans 15:28; 1 Corinthians 9:2; &c.)