Luke 6:12
And it came to pass in those days, that he went out into the mountain to pray; and he continued all night in prayer to God.
Mark 1:35
And rising early, long before day, he went out, and withdrew into a desert place, and there prayed.
Matthew 6:6
But do thou, when thou prayest, enter into thy closet, and, when thou hast shut thy door, pray to thy Father who is in secret; and thy Father, who seeth in secret, will reward thee.
Matthew 14:23-25
And when he had sent the multitudes away, he went up into the mountain apart to pray. And when evening came, he was there alone.
Mark 6:46
And when he had taken leave of them, he went away into the mountain to pray.
Mark 14:34-36
And he saith to them, My soul is exceedingly sorrowful, even to death; remain here and watch.
Colossians 4:2
Persevere in prayer, being watchful therein with thanksgiving;
Hebrews 5:7
Who in the days of his flesh, when he had offered up prayers and supplications, with strong crying and tears, to him that was able to save him from death, and was heard by reason of his godly reverence,