2160 O LORD, our Lord, how majestic is your name in all the earth! (Ps
2161 The second commandment enjoins respect for the Lords name. The name of the Lord is holy.
2162 The second commandment forbids every improper use of Gods name. Blasphemy is the use of the name of God, ofJesus Christ, of the Virgin Mary, and of the saints in an offensive way.
2163 False oaths call on God to be witness to a lie. Perjury is a grave offence against the Lord who is alwaysfaithful to his promises.
2164 Do not swear whether by the Creator, or any creature, except truthfully, of necessity and with reverence (St Ignatius of Loyola, Spiritual Exercises 38).
2165 In Baptism, the Christian receives his name in the Church. Parents, godparents and the pastor are to see that he be given a Christian name. The patron saint provides a model of charity and the assurance of his prayer.
2166 The Christian begins his prayers and activities with the Sign of the
2167 God calls each one by name (cf. Is 43:1).
Remember the sabbath day, to keep it holy. Six days you shall labour, and do all your work; but the seventh day is a sabbath to the LORD your God; in it you shall not do any work.9°
The sabbath was made for man, not man for the sabbath; so the Son of Man is lord even of the sabbath.9
2168 The third commandment of the Decalogue recalls the holi ness of the sabbath: The seventh day is a sabbath of solemn rest, holy to the LORD.92