A certain ruler - See the case of this person largely explained on Matthew 19:16-22 (note), and Mark 10:21, Mark 10:22 (note).

And a certain ruler asked him,.... A young man, Matthew 19:20 a ruler among the Jews, a civil magistrate, and a very rich man; he ran after Jesus, and overtook him in the way, as he was going towards Jericho, Mark 10:17

saying, good master; "Rabbi"; or doctor,

what shall I do to inherit eternal life? See Gill on Matthew 19:16.

Ruler

Peculiar to Luke.

And a certain ruler asked him, saying, Good Master, what shall I do to inherit eternal life?

18:18-30 And a certain ruler asked him. For notes on the case of the Rich Young Ruler, see Mt 19:16-30; also Mr 10:17-31. The ruler was probably ruler of a synagogue. See Mt 4:23.

18:18 Mt 19:16; Mr 10:17.

Lu 18:18-30. The Rich Young Ruler and Discourse Thereon.

This case presents some remarkable points. (1) The man was of irreproachable moral character; and this amidst all the temptations of youth, for he was a "young man" (Mt 19:22), and wealth, for "he was very rich" (Lu 18:23; Mr 10:22). (2) But restless notwithstanding, his heart craves eternal life. (3) Unlike the "rulers," to whose class he belonged (Lu 18:18), he so far believed in Jesus as to be persuaded He could authoritatively direct him on this vital point. (4) So earnest is he that he comes "running" and even "kneeling before Him," and that when He was gone forth into the war (Mr 10:17)-the high-road, by this time crowded with travellers to the passover; undeterred by the virulent opposition of the class he belonged to as a "ruler" and by the shame he might be expected to feel at broaching such a question in the hearing of a crowd and on the open road.

18:18-30 Many have a great deal in them very commendable, yet perish for lack of some one thing; so this ruler could not bear Christ's terms, which would part between him and his estate. Many who are loth to leave Christ, yet do leave him. After a long struggle between their convictions and their corruptions, their corruptions carry the day. They are very sorry that they cannot serve both; but if one must be quitted, it shall be their God, not their wordly gain. Their boasted obedience will be found mere outside show; the love of the world in some form or other lies at the root. Men are apt to speak too much of what they have left and lost, of what they have done and suffered for Christ, as Peter did. But we should rather be ashamed that there has been any regret or difficulty in doing it.