Luke
Luke 6:17ESV·traditional attribution

And he came down with them and stood on a level place, with a great crowd of his disciples and a great multitude of people from all Judea and Jerusalem and the seacoast of Tyre and Sidon,

Matthew Henry Presbyterian @wholebiblehenry

In these verses, we have our Lord Jesus in secret, in his family, and in public; and in all three acting like himself. I. In secret we have him praying to God, Luk 6:12. This evangelist takes frequent notice of Christ's retirements, to give us an example of secret prayer, by which we must keep up our communion with God daily, and without which it...

Commenting on Luke 6:12-19

John Gill Reformed Baptist @doctorgill

And they that were vexed with unclean spirits,.... Were possessed with devils, and sadly tormented and afflicted by them: and they were healed: both such that had bodily diseases, and were under diabolical possessions.

Albert Barnes Presbyterian @notesbybarnes

Verse 17. And stood in the plain. It is not affirmed, however, that he stood in the plain when he delivered the following discourse. There has been some doubt whether the following discourse is the same as that recorded in the 5th, 6th, and 7th chapters of Matthew, or whether the Saviour repeated the substance of that discourse, and that Luke recorded it as he repeated it.