requires respect for the names of people out of respect for the dignity of that person. The sentiment behind this commandment is further codified in the Lord's Prayer, which begins, "Our Father who art in heaven, hallowed be thy name". According to Pope Benedict XVI, when God revealed his name to Moses he established a relationship with mankind; Benedict states that the Incarnation was the culmination of a process that "had begun with the giving of the divine name." Benedict elaborates that this means the divine name could be misused and that Jesus' inclusion of "hallowed be thy name" is a plea for the sanctification of God's name, to "protect the wonderful mystery of his accessibility to us, and constantly assert his true identity as opposed to our distortion of it". According to Catholic teaching, this commandment does not preclude the use of God's name in taking solemn oaths administered by legitimate authority. However, lying under oath, invoking God's name for magical purposes, or voicing words of hatred or defiance against God are considered sins of blasphemy. Third commandment Quoting the Jewish rabbi and scholar Jacob Neusner, Pope Benedict XVI explains that to Israel, keeping this commandment was more than ritual; it was a way to imitate God, who rested on the seventh day after the creation. It also constituted the core of the social order. Although a few Christian denominations follow the Judaic practice of observing the Sabbath on Saturday, most Christian denominations, including the liturgical branches (Catholics, Eastern and Oriental Orthodox and the Churches of the East), observe Sunday as the special day for rest and worship, which they call the "Lord's Day". This practice dates to the first century, arising from their belief that Jesus rose from the dead on the first day of the week. The Didache calls on Christians to come together on the Lord's Day to break bread and give thanks. Tertullian is the first to mention Sunday rest: "We, however (just as tradition has taught us), on the day of the Lord's Resurrection ought to guard not only against kneeling, but every posture and office of solicitude, deferring even our businesses lest we give any place to the devil" ("De orat.", xxiii; cf. "Ad nation.", I, xiii; "Apolog.", xvi). In the sixth century, Caesarius of Arles taught that the whole glory of the Jewish Sabbath had been transferred to Sunday and that Christians