Luke 6:17

But observe all things carefully, how He both ascends with His Apostles and descends to the multitude; for how could the multitude see Christ but in a lowly place. It follows him not to the lofty places, it ascends not the heights. Lastly, when He descends, He finds the sick, for in the high places there can be no sick.

(de Con. Ev. ii. 19.) Now this long discourse of our Lord, Luke begins in the same way as Matthew; for each says, Blessed are the poor. Then many things which follow in the narration of each are like, and finally the conclusion of the discourse is found to be altogether the same, I mean with respect to the men who build upon the rock and the sand. It might then easily be supposed that Luke has inserted the same discourse of our Lord, and yet has left out some sentences which Matthew has kept, and likewise put in others which Matthew has not; were it not that Matthew says the discourse was spoken by our Lord on the mountain, but Luke on the plain by our Lord standing. It is not however thought likely from this that these two discourses are separated by a long course of time, because both before and after both have related some things like, or the same. It may however have happened that our Lord was at first on a higher part of the mountain with His disciples alone, and that then he descended with them from the mount, that is, from the summit of the mountain to the flat place, that is, to some level ground, which was on the side of the mountain, and was able to hold large multitudes, and that there He stood until the crowds were gathered together to Him, and afterwards when He sat down His disciples came nearer, and to them, and the rest of the multitude who were present, He held the same discourse.

When the ordination of the Apostles was accomplished, and great numbers were collected together from the country of Judæa, and from the sea coast of Tyre and Sidon, (who were idolaters,) he gave the Apostles their commission to be the teachers of the whole world, that they might recal the Jews from the bondage of the law, but the worshippers of devils from their Gentile errors to the knowledge of the truth. Hence it is said, And he came down with them, and stood in the plain, and a great multitude from Judæa, and the sea coast, &c.

By the sea coast he does not refer to the neighbouring sea of Galilee, because this would not be accounted wonderful, but it is so called from the great sea, and therein also Tyre and Sidon may be comprehended, of which it follows, Both of Tyre and Sidon. And these states being Gentile, are purposely named here, to indicate how great was the fame and power of the Saviour which had brought even the citizens of the coast to receive His healing and teaching. Hence it follows, Which came to hear him.

That is, for the cure of their souls; and that they might be healed of their diseases, that is, for the cure of their bodies.