If Jewish scholars wanted to make the case that the prohibition is included in the Noahide Laws (particularly the one on blasphemy) them maybe it could be legitimate. But until then I don’t see even any ecumenical reason to do this (for a Christian).

Response:

1. In the 1960’s Christian churches across America began modifying the traditional Sunday morning service from a formal format to one more casual. This was a good idea. We should worship God “in Spirit and in truth,” not in the form of religion only.

Over the years, many adjustments have occurred in churches across the land:

Entered contemporary music and lyrics.
Entered modern musical instruments.
Entered various translations and versions of the Bible.
Entered casual clothing, replacing the traditional “Sunday best” garb.
Entered serving coffee and tea not only before and after the church service but even during the church service.
Entered (partially) replacing Bible reading during church services with poetry readings.
Entered sermons replacing the gospel message of repentance from sin and turning to God by faith in Jesus Christ to encouraging talks on how to be a successful Christian.

The above list includes features that have positive value and can contribute to the worship experience. But along with the quest for causal church services we lost the notion of respect and reverence during Christian worship and possibly for God Himself. It is often good to be causal but at the same time the sense of awe and reverence for God should not be lost. Using the Hebrew words for God and Lord by (or to) people who know nothing of the Hebrew language may tend to erode even more the few remaining fragments of respect and reverence. “Thou shalt not take the name of the Lord thy God in vain” is a commandment that goes beyond crude curses and profanity. The commandment teaches that we should not use the name of God without its intended meaning and reverence.

2. People living in foreign countries and people knowledgeable about foreign languages are encouraged to not sprinkle foreign vocabulary when speaking and writing in their native tongue. Oriental people sometimes insert an English word or two into their conversations, newsprint and other publications. I must admit, it is often odd to listen to a conversation in Japanese and suddenly hear an English word. Did they know what they just said? Do they know the social, cultural context of the word? Often not.

The Hebrew words for God and Lord can be classified as “specialized vocabulary,” not intended for general conversation. For English speaking Christians, using the English words God and Lord is probably sufficient for most communication. The use of foreign words is usually a linguistically poor choice if the surrounding sentence is English. Dode-shou (I wonder).