John Chrysostom

And how shall this be? "If ye keep My commandments, even as I have kept my Father's commandments." Again, His discourse proceedeth in a human way; for certainly the Lawgiver would not be subject to commandments. Seest thou that here also, as I am always saying, this is declared because of the infirmity of the hearers?

Homily on the Gospel of John 76 ↗

Theophylact of Ohrid

Then He explains how they can abide in this love, namely: if they keep His commandments. For, as has been said many times, he who keeps His commandments loves Him. By all this He shows that they will be safe when they lead a pure life. And He says this in condescension to the weakness of His listeners. For it is utterly absurd to think that He who gives laws to all was subject to commandments and could not govern His own life without the Father's commandments. He says this in order to comfort them more. …

Commentary on John ↗

Augustine of Hippo

But what are we to make of that which follows: "Even as I have kept my Father's commandments, and abide in His love"? Here also He certainly intended us to understand that fatherly love wherewith He was loved of the Father. For this was what He has just said, "As the Father hath loved me, so have I loved you;" and then to these He added the words, "Continue ye in my love;" in that, doubtless, wherewith I have loved you. …

Tractates on John 82 ↗

Thomas Aquinas

2001 Now he shows what it means to abide in his love. First, he shows that it means to keep his commandment; secondly, he illustrates it with an example, as I have kept my Father's commandments; thirdly, he eliminates an assumption (v 11). 2002 He says, Abide in my love, and you will do this if you keep my commandments, for this is the way you will abide in my love. Keeping the commandments is an effect of divine love, not only of the love by which we love, but also of the love by which God loves us. …

Commentary on John ↗

Bonaventure

And because true love is manifested through works, he adds: If you keep my commandments, you will abide in my love; just as I have kept the commandments of my Father and abide in his love: above in chapter fourteen: "That the world may know that I love the Father, and as the Father has given me commandment, so I do." So also we ought to do; 1 John 2: "He who says that he abides in him ought, even as he walked, himself also to walk"; Deuteronomy 10: "And now, Israel, what does the Lord your God ask of you, except that you fear the …

Commentary on John, Chapter 15 ↗