Matthew 26:44

And He left them, and went away again, and prayed the third time, to the same effect.

2 Corinthians 12:8

For this I besought the Lord thrice, that it might depart from me.

Matthew 6:7

But when ye pray, use not vain repetitions, as the heathens do, for they think they shall be heard for their speaking much:

Luke 18:1

And He spake also a parable to them, to shew that men ought always to pray, and not to faint:

Treasury of Scripture Knowledge

Summary

And he left them, and went away again, and prayed the third time, saying the same words.

Bible References

Prayed

Matthew 6:7
But when ye pray, use not vain repetitions, as the heathens do, for they think they shall be heard for their speaking much:
Luke 18:1
And He spake also a parable to them, to shew that men ought always to pray, and not to faint:
2 Corinthians 12:8
For this I besought the Lord thrice, that it might depart from me.