He said unto him, What is written in the law? how readest thou?

People's New Testament

10:26 What is written? The Lord calls on the lawyer to state his own understanding of the law.

Jamieson-Fausset-Brown Bible Commentary

26. What is written in the law-apposite question to a doctor of the law, and putting him in turn to the test [Bengel].

Matthew Henry's Concise Commentary

10:25-37 If we speak of eternal life, and the way to it, in a careless manner, we take the name of God in vain. No one will ever love God and his neighbour with any measure of pure, spiritual love, who is not made a partaker of converting grace. But the proud heart of man strives hard against these convictions. Christ gave an instance of a poor Jew in distress, relieved by a good Samaritan. This poor man fell among thieves, who left him about to die of his wounds. He was slighted by those who should have been his friends, and was cared for by a stranger, a Samaritan, of the nation which the Jews most despised and detested, and would have no dealings with. It is lamentable to observe how selfishness governs all ranks; how many excuses men will make to avoid trouble or expense in relieving others. But the true Christian has the law of love written in his heart. The Spirit of Christ dwells in him; Christ's image is renewed in his soul. The parable is a beautiful explanation of the law of loving our neighbour as ourselves, without regard to nation, party, or any other distinction. It also sets forth the kindness and love of God our Saviour toward sinful, miserable men. We were like this poor, distressed traveller. Satan, our enemy, has robbed us, and wounded us: such is the mischief sin has done us. The blessed Jesus had compassion on us. The believer considers that Jesus loved him, and gave his life for him, when an enemy and a rebel; and having shown him mercy, he bids him go and do likewise. It is the duty of us all , in our places, and according to our ability, to succour, help, and relieve all that are in distress and necessity.