But when you pray, use not vain repetitions, as the heathen do: for they think that they shall be heard for their much speaking.
All Commentaries on Matthew 6:7 Go To Matthew 6
John Chrysostom
AD 407
By the example of the importunate widow who prevailed with the pitiless and cruel ruler by persevering in her requests, we are shown how to pray. We hear the insistent voice of the friend who came late at night and roused the sleeper from his bed, not for friendship’s sake but out of his urgent need. By these examples Jesus called us continually to make earnest supplication to the Father. He did not ask us to compose a prayer of ten thousand phrases and so come to him and merely repeat it. He warned against those who “think that they shall be heard for their loquacity.” “For your Father knows what you need before you ask him.” But if he already knows what we need, why do we pray? Not to inform God or instruct him but to beseech him closely, to be made intimate with him, by continuance in supplication; to be humbled; to be reminded of our sins. The Gospel of Matthew, Homily