Augustine of Hippo, on Matt 6:9

“Thus therefore shall you pray: Our Father who art in heaven, hallowed be thy name.”

“(Serm. in Mont. ii. 4.) Since in every entreaty we have first to propitiate the good favour of Him whom we entreat, and after that mention what we entreat for; and this we commonly do by saying something in praise of Him whom we entreat, and place it in the front of our petition; in this the Lord bids us say no more than only, Our Father which art in Heaven. Many things were said of them to the praise of God, yet do we never find it taught to the children of Israel to address God as ‘Our Father;’ He is rather set before them as a Lord over slaves. But of Christ’s people the Apostle says, We have received the Spirit of adoption, whereby we cry Abba, Father, (Rom. 8:15.) and that not of our deservings, but of grace. This then we express in the prayer when we say, Father; which name also stirs up love. For what can be dearer than sons are to a father? And a suppliant spirit, in that men should say to God Our Father. And a certain presumption that we shall obtain; for what will He not give to His sons when they ask of Him, who has given them that first that they should be sons? Lastly, how great anxiety possesses his mind, that having called God his Father, he should not be unworthy of such a Father. By this the rich and the noble are admonished when they have become Christians not to be haughty towards the poor or truly born, who like themselves may address God as Our Father; and they therefore cannot truly or piously say this unless they acknowledge such for brethren.”

Imported from an open dataset — not yet checked against the printed edition.