Luke 6:12
It was in those days that he went up on the mountain to pray, and passed the whole night in prayer to God.
Mark 1:35
Early in the morning, long before daylight, he got up and left the house and went off to a lonely spot, and prayed there.
Matthew 6:6
But when you pray, go into your own room, and shut the door, and pray to your Father who is unseen, and your Father who sees what is secret will reward you.
Matthew 14:23-25
After he had dismissed them he went up the hill by himself to pray. And when evening came on he was there alone,
Mark 6:46
When he had taken leave of the people he went up the hill to pray.
Mark 14:34-36
and he said to them, "My heart is almost breaking. You must stay here and keep watch."
Colossians 4:2
Be persistent in prayer and wide awake about it when you give thanks.
Hebrews 5:7
For Jesus in his life on earth offered prayers and entreaties, crying aloud with tears, to him who was able to save him from death, and because of his piety his prayer was heard.