This is he of whom I said, ‘After me comes a man who ranks before me, because he was before me.’
30. This is he of whom I said. He comprehends every thing in a few words, when he declares that Christ is the person who, he said, was to be preferred to him; for hence it follows that John is nothing more than a herald sent on his account; and hence again it is evident that Christ is the Messiah.
We have in these verses an account of John's testimony concerning Jesus Christ, which he witnessed to his own disciples that followed him. As soon as ever Christ was baptized he was immediately hurried into the wilderness, to be tempted; and there he was forty days.
Commenting on John 1:29-36
This is he, of whom it is said,.... Either the day before, as in Joh 1:27, or some time before that, Joh 1:15, when he first began to baptize, even before Christ came to be baptized by him, and before he personally knew him; see Mat 3:11.