Matthew 22:37

Thou shalt love—with all thy heart, &c.— These words heart, soul, &c. though used promiscuously, yet, when thus put together, seem intended to express, after a more distinct manner, the requisite circumstances of that obedience which is the proper evidence of our love towards God. The words with all thy heart imply, that our love and obedience should be sincere, consisting not in the external act only, but likewise in the inward affections of the mind. The words with all thy soul shew, that our obedience must be universal; for he does not love God in the Scripture sense, who obeys him in some instances only, and not in all. Lastly, the words with all thy mind teach, that our obedience to God ought to be willing and cheerful.