Luke 6:12
It happened about that time that he went out into the mountain to pray. He continued all night in prayer to God.
Mark 1:35
In the morning he rose a great while before day and went out to a desert place, and there prayed.
Matthew 6:6
"But you, when you pray, go into your own room and shut your door; pray to your Father who is in secret, and your Father who sees in secret will reward you.
Matthew 14:23-25
After he had sent the crowds away, he went up into the mountain alone, to pray. When night came he was there alone.
Mark 6:46
After he had taken leave of them, he went away into the mountain to pray.
Mark 14:34-36
and he said to them. "My soul is full of anguish, even unto death; wait here, and keep watch."
Colossians 4:2
Be unwearied in prayer, and keep awake in it when giving thanks.
Hebrews 5:7
In the days of his flesh, with better cries and weeping Jesus offered up prayers and supplications to Him who was able to save him out of death; and he was heard because of his devout submission.