Matthew 19:18

He saith unto him, which ?.... Whether those commandments of a moral, or of a ceremonial kind; whether the commands of the written, or of the oral law; of God, or of the elders, or both; or whether he did not mean some new commandments of his own, which he delivered as a teacher sent from God:

Jesus said ; according to the other evangelists, "thou knowest the commandments"; not the true nature, spirituality, and use of them, but the letter and number of them; being trained up from a child by his parents, in the reading them, committing them to memory, and the outward observance of them, particularly those of the second table:

thou shalt do no murder, thou shalt not commit adultery, thou shalt not steal, thou shalt not bear false witness . Christ takes no notice of the ceremonial law, nor of the traditions of the elders, only moral precepts; and these only such as refer to the second, and not the first table of the law, which respect duty to the neighbour, and not to God: and this he does, because these commandments were more known, and were in common use; and he chose to instance in these, partly to show, that if men are under obligation to regard these, much more such as concern God more immediately; and partly, to observe, that if men are deficient in their duty to one another, they are much more so in their worship of God; and consequently, eternal life is never to be got and enjoyed by the performance of these things.