Carson comments on Matthew 6:7, in which Jesus warns kingdom pray-ers, “Use not vain repetitions, as the heathen do.”
His point is that his disciples should avoid meaningless, repetitive prayers offered under the misconception that mere length will make prayers efficacious. Such thoughtless babble can occur in liturgical and extemporaneous prayers alike.
This is true for me, at least. It is so easy to fall into established patterns (especially at meal times, I find); so I try by God’s grace to pray like I am really speaking to a person.
Because, of course, I am.