Luke 6:12
And in those days He went out to a mountain to pray, and He continued all night in prayer to God.
Mark 1:35
And in the morning, before it was light, He rose up and went out, and retired into a solitary place, and there prayed.
Matthew 6:6
But thou, when thou prayest, enter into thy closet, and when thou hast shut thy door, pray to thy Father who is in secret, and thy Father who seeth in secret, will reward thee openly.
Matthew 14:23-25
and when He had dismissed them, He went up to a hill in private to pray.
Mark 6:46
and when He had sent them away, He retired into a mountain to pray.
Mark 14:34-36
And He saith unto them, My Soul is exceeding sorrowful even unto death, stay here and watch.
Colossians 4:2
Persevere in prayer, and be watchful in it, with thanksgiving.
Hebrews 5:7
Who in the days of his flesh, offered prayers and supplications with strong crying and tears, to Him that was able to save Him from death, and was heard in what He feared;