Mark 12:30

“And thou shalt love the Lord thy God, etc..] Which is to be understood of the one God, Father, Son, and Spirit; for all the three divine persons are to be equally loved, being possessed of the same perfections and excellencies, and having done the same works, and having bestowed like benefits and favours upon men: and though there is now no principle of love to God in men; but, on the contrary, men are enemies to God in their minds, which appears by their wicked works; yet this commandment is still in force, and the obligation to it is the same; the fall of man, the corruption of nature, and the impotency, and even aversion in man to observe this command, do not make it null and void: and in…”

“See the notes at Matthew 22:34-40. Mark 12:28 Perceiving that he answered them well - That is, with wisdom, and with a proper understanding of the law. In this case the opinion of the Saviour corresponded with that of the Pharisees; and the question which this scribe put to him now seems to have been one of the very few candid inquiries of him by the Jews for the purpose of obtaining information. Jesus answered it in the spirit of kindness, and commended the conduct of the man. Mark 12:29 Hear, O Israel! - This was said to call the attention of the Jews to the great importance of the truth about to be proclaimed. See Deuteronomy 6:4-5. The Lord our God ... - Literally, “Yahweh, our God, is…”

“With all thy strength - That is, the whole strength and capacity of thy understanding, will, and affections. Mark 12:31”