Youcat commented through CCC – Question n. 359 – Part V.

YOUCAT Question n. 359 – Part V. Why does God want us to “hallow” his name (that is, keep it holy)?

(Youcat answer - repeated) To tell someone your name is a sign of trust. Since God has told us his name, he makes himself recognizable and grants us access to him through this name. God is absolute truth. Someone who calls Truth himself by his name but uses it to testify to a lie sins seriously.   

A deepening through CCC

(CCC 2152) A person commits perjury when he makes a promise under oath with no intention of keeping it, or when after promising on oath he does not keep it. Perjury is a grave lack of respect for the Lord of all speech. Pledging oneself by oath to commit an evil deed is contrary to the holiness of the divine name.

Reflecting and meditating 

(Youcat comment) One must not pronounce the name of God irreverently. For we know him only because he has entrusted himself to us. The Holy Name, after all, is the key to the heart of the Almighty. Therefore it is a terrible offense to blaspheme God, to curse using God’s name, or to make false promises in his name. The Second Commandment is therefore also a commandment that protects “holiness” in general. Places, things, names, and people who have been touched by God are “holy”. Sensitivity to what is holy is called reverence.   

(CCC Comment)

(CCC 2153) In the Sermon on the Mount, Jesus explained the second commandment: "You have heard that it was said to the men of old, 'You shall not swear falsely, but shall perform to the Lord what you have sworn.' But I say to you, Do not swear at all.... Let what you say be simply 'Yes' or 'No'; anything more than this comes from the evil one" (Mt 5:33-34, 37; cf. Jas 5:12). Jesus teaches that every oath involves a reference to God and that God's presence and his truth must be honored in all speech. Discretion in calling upon God is allied with a respectful awareness of his presence, which all our assertions either witness to or mock. (CCC 2154) Following St. Paul (Cf. 2 Cor 1:23; Gal 1:20), the tradition of the Church has understood Jesus' words as not excluding oaths made for grave and right reasons (for example, in court). "An oath, that is the invocation of the divine name as a witness to truth, cannot be taken unless in truth, in judgment, and in justice" (CIC, can. 1199 § 1).      

(This question: Why does God want us to “hallow” his name (that is, keep it holy)? is continued)