Matthew 22:38

Verse 38. This is the first and great commandment. This commandment is found in De 6:5. It is the first and greatest of all; first, not in order of time, but of importance; greatest in dignity, in excellence, in extent, and duration. It is the fountain of all others. All beings are to be loved according to their excellence. As God is the most excellent and glorious of all beings, he is to be loved supremely. If He is loved aright, then our affections will be directed towards all created objects in a right manner.

Albert Barnes, 1834 · public domain

Verse 38 This is the first and great commandment - It is so, 1. In its antiquity, being as old as the world, and engraven originally on our very nature. 2. In dignity; as directly and immediately proceeding front and referring to God. 3. In excellence; being the commandment of the new covenant, and the very spirit of the Divine adoption. 4. In justice; because it alone renders to God his due, prefers him before all things, and secures to him his proper rank in relation to them. 5. In sufficiency; being in itself capable of making men holy in this life, and happy in the other. 6. In fruitfulness; because it is the root of all commandments, and the fulfilling of the law. 7. In virtue and efficacy; because by this alone God reigns in the heart of man, and man is united to God. 8. In extent; leaving nothing to the creature, which it does not refer to the Creator. 9. In necessity; being absolutely indispensable. 10. In duration; being ever to be continued on earth, and never to be discontinued in heaven.

Adam Clarke, 1831 · public domain