The Our Father is the oldest of Christian prayers, going back to Jesus Christ Himself, who, in Matthew 6:9-13, taught his disciples to pray in these words. For that reason, the Our Father is often known as the Lord's Prayer. Because this prayer came from Christ, it is used in every Mass and in the Church's daily prayer, the Liturgy of the Hours or Divine Office. All Christians should pray the Our Father daily.
The Our Father
Our Father who art in heaven, hallowed be Thy name; Thy Kingdom come; Thy will be done on earth as it is in heaven. Give us this day our daily bread; and forgive us our trespasses as we forgive those who trespass against us; and lead us not into temptation, but deliver us from evil. Amen.