Si quis voluerit voluntatem ejus facere, cognoscet de doctrina, utrum ex Deo sit, an ego a meipso loquar.
If any man will do the will of him, he shall know of the doctrine, whether it be of God, or whether I speak of myself.
Si qui vol voluntate de illo facere, cognosce de doctrina, utro ex Deo es, an me ab meibda loque.