Matthew 14:23
And having dismissed the multitudes, he went on a mountain by himself to pray. And when it was evening he was there alone.
Mark 14:35
And going forward a little he fell on the ground, and prayed that, if it was possible, the hour might pass away from him.
Luke 6:12
AND in those days he went out on the mountain to pray, and spent the whole night in prayer to God.
Acts 10:9
And on the next day, as they were pursuing their journey and had come nigh to the city, Peter went upon the house to pray, about the sixth hour.
James 5:16-18
Confess your faults one to another, and pray one for another, that you may be cured, for the prayer of the righteous operates with great power.