Mark 14:39
And again he went away and prayed, saying the same words.
Matthew 6:7
"And when you pray, do not heap up empty phrases as the Gentiles do, for they think that they will be heard for their many words.
Matthew 26:42-44
Again, for the second time, he went away and prayed, "My Father, if this cannot pass unless I drink it, your will be done."
Luke 18:1
And he told them a parable to the effect that they ought always to pray and not lose heart.
2 Corinthians 12:8
Three times I pleaded with the Lord about this, that it should leave me.