Matthew 14:23
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 14:35
And he went forward a little, and fell upon the ground, and prayed, that, if it were possible, the hour might pass from him;
Luke 6:12
And it came to pass in those days, that he went out into the mountain to pray; and he spent the night in prayer to God.
Acts 10:9
And on the morrow, as they were going on their journey, and were drawing near to the city, Peter went up on the house top to pray, about the sixth hour.
James 5:16-18
Confess your faults one to another, and pray for one another, that you may be restored to health: the fervent prayer of a righteous man avails much.