Luke
Luke 6:12BSB·traditional attribution

In those days Jesus went out to the mountain to pray, and He spent the night in prayer to God.

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 when it was day,.... Or morning; having spent the whole night in prayer to God, no doubt for his disciples, whom he was about to send forth as his apostles, to preach his Gospel, and work miracles, and for their success therein: he called unto him his disciples; the whole company of them, as in Luk 6:17 all that were his followers, and professed...

Albert Barnes Presbyterian @notesbybarnes

Verse 12. And it came to pass in those days. The designation of the time here is very general. It means about the time when the events occurred which had been just narrated. He went out into a mountain. Jesus was accustomed to resort to such places to hold communion with God, .