John 5:31 - Coke's Commentary on the Holy Bible

If I bear witness of myself, &c.— These certainly were very grand assertions, which our Lord made of his own dignity. But he did not require his hearers to believe them merely on the authority of his own testimony; a circumstance by which the Lord Jesus Christ, the only Son of God, isdistinguished from Mahomet and every other impostor. He told them, that he had the testimony of John given him in the hearing of their own deputies; but at the same time he observed, that the truth of his divine mission did not depend merely on human testimony, though it was given by one who was a burning and shining Light, and in whom they greatly rejoiced, because the prophetic spirit which had so long ceased seemed to be again revived in him. See John 5:35.