Luke 6:12
And it came to pass in those days, that He went out into the mountain to pray; and was there through the night in the prayer of God.
Mark 1:35
And in the morning, exceedingly early, while it was yet night, having arisen up He came out, and went away into a desert place, and was praying there.
Matthew 6:6
But when thou mayest pray, enter into thy closet, and having closed thy door, pray to thy Father who is in secret, and thy Father who seeth in secret will reward thee openly.
Matthew 14:23-25
And having dismissed the multitudes He went up into the mountain alone, to pray. And it being evening He was there alone.
Mark 6:46
And having dismissed them, He went away into the mountain to pray.
Mark 14:34-36
And He says to them, My soul is exceedingly sorrowful unto death: abide here, and watch.
Colossians 4:2
Be constant in prayer, watching in the same with thanksgiving;
Hebrews 5:7
Who in the days of his flesh, having with strong crying and tears offered up both prayers and supplications unto him who is able to save him from death, and having been heard on account of his piety,