"Continue ye," He says, "in my love." How shall we continue? Listen to what follows: "If ye keep my commandments, ye shall abide in my love." Love brings about the keeping of His commandments; but does the keeping of His commandments bring about love? Who can doubt that it is love which precedes? For he has no true ground for keeping the commandments who is destitute of love. And so, in saying, "If ye keep my commandments, ye shall abide in my love," He shows not the source from which love springs, but the means whereby it is manifested. As if He said, Think not that ye abide in my love if ye keep not my commandments; for it is only if ye have kept them that ye shall abide. In other words, it will thus be made apparent that ye shall abide in my love if ye keep my commandments. So that no one need deceive himself by saying that he loveth Him, if he keepeth not His commandments. For we love Him just in the same measure as we keep His commandments; and the less we keep them, the less we love.
What, then, do the words mean, "Continue ye in my love," but just, continue ye in my grace? And what do these mean, "If ye keep my commandments, ye shall abide in my love," but, hereby shall ye know that ye shall abide in the love which I bear to you, if ye keep my commandments? It is not, then, for the purpose of awakening His love to us that we first keep His commandments; but this, that unless He loves us, we cannot keep His commandments. This is a grace which lies all disclosed to the humble, but is hid from the proud. (Tractate on the Gospel of John, LXXXII, 3).
