Matthew 6:7

6:7 When you pray, do not babble repetitiously like the Gentiles, because they think that by their many words they will be heard.

Matthew 26:42-44

26:42 He went away a second time and prayed, “My Father, if this cup cannot be taken away unless I drink it, your will must be done.” 26:43 He came again and found them sleeping; they could not keep their eyes open. 26:44 So leaving them again, he went away and prayed for the third time, saying the same thing once more.

Luke 18:1-2

Prayer and the Parable of the Persistent Widow

18:1 Then Jesus told them a parable to show them they should always pray and not lose heart. 18:2 He said, “In a certain city there was a judge who neither feared God nor respected people.

Colossians 1:8

1:8 who also told us of your love in the Spirit.