28 And one of the scribes who had come up, and had heard them reasoning together, perceiving that he had answered them well, demanded of him, Which is [the] first commandment of all? 29 And Jesus answered him, [The] first commandment of all [is], Hear, Israel: the Lord our God is one Lord; 30 and thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thine understanding, and with all thy strength. This is [the] first commandment. 31 And a second like it [is] this: Thou shalt love thy neighbour as thyself. There is not another commandment greater than these. 32 And the scribe said to him, Right, teacher; thou hast spoken according to [the] truth. For he is one, and there is none other besides him;
Matthew Henry's Commentary on Mark 12:28-32
Commentary on Mark 12:28-34
(Read Mark 12:28-34)
Those who sincerely desire to be taught their duty, Christ will guide in judgment, and teach his way. He tells the scribe that the great commandment, which indeed includes all, is, that of loving God with all our hearts. Wherever this is the ruling principle in the soul, there is a disposition to every other duty. Loving God with all our heart, will engage us to every thing by which he will be pleased. The sacrifices only represented the atonements for men's transgressions of the moral law; they were of no power except as they expressed repentance and faith in the promised Saviour, and as they led to moral obedience. And because we have not thus loved God and man, but the very reverse, therefore we are condemned sinners; we need repentance, and we need mercy. Christ approved what the scribe said, and encouraged him. He stood fair for further advance; for this knowledge of the law leads to conviction of sin, to repentance, to discovery of our need of mercy, and understanding the way of justification by Christ.