Matthew 14:23
after he had dismissed the crowds he went up the hill by himself to pray. When evening came he was there alone,
Mark 14:35
Then he went forward a little and fell to the earth, praying that the hour might pass away from him, if possible.
Luke 6:12
It was in these days that he went off to the hillside to pray. He spent the whole night in prayer to God,
Acts 10:9
Next day they were still on the road and not far from the town, when Peter went up to the roof of the house about noon to pray.
James 5:16-18
So confess your sins to one another and pray for one another, that you may be healed; the prayers of the righteous have a powerful effect.