Hilary of Poitiers

On those whom He healed He enjoined silence, whence it follows, And he charged them that they should not make him known. For his restored health was a witness to each man. And by commanding them to hold their peace, He avoids all ostentation of Himself, and at the same time notwithstanding affords a knowledge of Himself in that very admonition to hold their peace; for the observance of silence proceeds from that very thing which is to be kept silent.