He convicts his disciples of being yet troubled about trifles, and of taking unseasonable offence at what they by no means ought, and of not yet knowing accurately, Who and whence Emmanuel is. For not thus far, saith he, shall His Deeds be marvelled at, nor because more are baptized by Him, shall He for this alone surpass my honour, but He shall attain to so great a measure of honour, as befitteth God. For He must needs come to increase of glory, and, through daily additions of miracles, ever mount up to the greater, and shine forth with greater splendour to the world: but I must decrease, abiding in that measure wherein I appear, not sinking from what was once given me, but in such a degree inferior to Him That advanceth ever to an increase of glory, as He hasteth and passeth on.
And this the blessed Baptist interpreteth to us. But our discourse will advance profitably through examples, making the force of what has been said clearer. Let then a stake two cubits long be fixed in the ground: let there lie near a plant too, just peeping above the ground, putting forth green shoots into the air, and ever thrust up to a greater height by the resistless vigour from the roots; if then one could put voice into the stake, and it should then say of itself and its neighbour the plant, This must increase, but I decrease; one would not reasonably suppose that it indicated any harm to itself, nor that its existing measure would be clipped, but it would be affirming its decrease in that sort only, in which it is found less than that which is ever advancing towards increase. Again you may take an example akin to this one, and suppose the brightest of the stars to cry out saying of the sun, It must increase, but I decrease. For while in the gloom of night the depth of the atmosphere is darkened, one may well admire the morning star flashing forth its golden light, and conspicuous in its full glory: but when the sun now gives notice of its rising, and bedews the world with a moderate light, the star is surpassed by the greater, and gives place to him advancing little by little. And it too might well speak the words of John, being in that same state, which he says he is enduring.
