Keep it holy.

It is written:

"Keep my commands and follow them. I am the LORD. Do not profane my holy name. I must be acknowledged as holy by the Israelites. I am the LORD, who makes you holy and who brought you out of Egypt to be your God. I am the LORD." Lev 22:31-33

Something that is holy, is something that is not common. It is the viewpoint of the majority of volunteers at JerusalemCouncil.org that God's name is to be treated with respect and separation from our common language. To use the sacred name of God in a manner that does not revere its holiness is, in our opinion, treating that which is holy as something that is common.

Although the commandment is to not "profane" the holy name of God (that is, to bring dishonor to his name by disobedience to "keep my commands and follow them"), we believe that one who makes God's sacred name ("I am the LORD") common, is one who can not fulfill the fullness of the commandment to not "profane my holy name," for then when the name of God is treated as common, then by definition it is no longer treated as holy. If the commandment just said "do not profane my name," it would most likely not be counting the holiness of God's name within the context of profaning. Since it does say "do not profane my holy name" then to use God's name in a common way, by implication, is engaging in profanity.

The fact that Yeshua himself seems to have used a circumlocution for God's name when reading from the scroll of Isaiah in Luke 4:18, should be more than enough to convince us to consider adopting his halakha concerning the matter.

See discussion here: A Comment on Sacred Name Theology