Matthew 14:23
And having sent the multitude away, he went up into a mountain apart to pray.
Mark 14:35
And going forward a little, he fell on the ground, and prayed, that, if it were possible, the hour might pass from him.
Luke 6:12
And in those days he went out into a mountain to pray, and continued all night in the prayer of God.
Acts 10:9
On the morrow, as they journeyed and drew nigh 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, brethren, and pray one for another, that ye may be healed: the fervent prayer of a righteous man availeth much.