12 And it came to pass in those days, he went forth to the mountain to pray, and was passing the night in the prayer of God,
Luke 6:12 Cross References - YLT
Genesis 32:24-26
24 And Jacob is left alone, and one wrestleth with him till the ascending of the dawn;
25 and he seeth that he is not able for him, and he cometh against the hollow of his thigh, and the hollow of Jacob's thigh is disjointed in his wrestling with him;
26 and he saith, `Send me away, for the dawn hath ascended:' and he saith, `I send thee not away, except thou hast blessed me.'
Psalms 22:2
2 My God, I call by day, and Thou answerest not, And by night, and there is no silence to me.
Psalms 55:15-17
Psalms 109:3-4
Daniel 6:10
10 And Daniel, when he hath known that the writing is signed, hath gone up to his house, and the window being opened for him, in his upper chamber, over-against Jerusalem, three times in a day he is kneeling on his knees, and praying, and confessing before his God, because that he was doing it before this.
Matthew 6:6
6 `But thou, when thou mayest pray, go into thy chamber, and having shut thy door, pray to thy Father who is in secret, and thy Father who is seeing in secret, shall reward thee manifestly.
Matthew 14:23-25
23 and having let away the multitudes, he went up to the mountain by himself to pray, and evening having come, he was there alone,
24 and the boat was now in the midst of the sea, distressed by the waves, for the wind was contrary.
25 And in the fourth watch of the night Jesus went away to them, walking upon the sea,
Mark 1:35
35 And very early, it being yet night, having risen, he went forth, and went away to a desert place, and was there praying;
Mark 6:46
46 and having taken leave of them, he went away to the mountain to pray.
Mark 14:34-36
34 and he saith to them, `Exceeding sorrowful is my soul—to death; remain here, and watch.'
35 And having gone forward a little, he fell upon the earth, and was praying, that, if it be possible the hour may pass from him,
36 and he said, `Abba, Father; all things are possible to Thee; make this cup pass from me; but, not what I will, but what Thou.'
Colossians 4:2
2 In the prayer continue ye, watching in it in thanksgiving;
Hebrews 5:7
7 who in the days of his flesh both prayers and supplications unto Him who was able to save him from death—with strong crying and tears—having offered up, and having been heard in respect to that which he feared,