WHY IS IT CALLED THE “LORD’S  PRAYER”?

The Our Father is called the “Oratio Dominica”, that is, the Lord’s Prayer because it was taught to us by the Lord Jesus himself. The prayer that comes to us from Jesus is truly unique: it is “of the Lord.” On the one hand, in the words of this prayer the only Son gives us the words the Father gave him: he is the master of our prayer. On the other, as Word incarnate, he knows in his human heart the needs of his human brothers and sisters and reveals them to us: he is the model of our prayer. It is the prayer fulfilled by the prayer of Christ.