This precept seems to refer to the love of our neighbour, not of God, as in another place He says, there are two commandments on which hang the Law and the Prophets. But as He says not here, The whole Law, as He speaks there, He reserves a place for the other commandment respecting the love of God.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Serm. in Mont., ii, 22