Today, many forms of swearing have become so common place and accepted, that many do not even realize that the words of exclamation they use may be a form of swearing.
This list presents common forms of swearing and/or cursing that many Christians may use without consciously realizing that they were swearing or cursing. Please note that words or expressions are not of themselves swear/curse words or expressions, but they are often used in a form by which they may become swearing or cursing.
Oh my God!
Swearing by God; used often and extensively as an exclamation without any thought of actually calling upon God, thus adding to one's "yes" and "no".
Gosh, Golly, By Gosh, Dog (as in "Oh, my Dog"), Gad,
Euphemisms for "God". Used as a form of casual swearing by God often in forms of exclamation.
"The Gods"; a form of swearing by the gods.
Gol-darn, Gol-Dang; Dagnabit, Dad-gum, Geoffrey Daniel; Dog-gone-(It), Gosh-Darn.
Euphemisms for "God damn (it)", forms of cursing.
Gee, Gee whiz, Jiminy Cricket, Jeepers Creepers, Jeebuz, Geez, Jiminy Christmas, By Crakey, By Crickey, etc.
Euphemisms for "Jesus" or "Jesus Christ". Used as a form of casual swearing by Jesus.
George, By George
Appears to be associated with a form of swearing by the "patron saint"of England.
Could also have developed from swearing by King George of England
My Goodness, Oh My Goodness
Forms of swearing by one's own goodness
Euphemism for By Jehovah
Heck, Sam Hill, Tarnation, Infernal
Euphemisms for the word "hell". Forms of swearing by hell or hades, which, in turn, is often used as a name for the god, Pluto.
Italian (and also in some of the Latin-based languages) meaning "my mother." Often used as means of swearing by one's mother.
Darn, Dret, Dang, Durn
Euphemism for "damn". A form of cursing.
This appears to be taken from the Nicene Creed, and it also used in at least one doxology, the rosary, and some hymns. The expression, "Glory Be", is, however, often used casually as an exclamation to give an added impact to one's "yes" and "no", thus could be a form of swearing, possibly having its origins in swearing by the alleged trinity.
Hallelujah means: "Praise Jah", "Jah" being a short form of "Jehovah". Used as an exclamation to add to one's "yes" or "no" without regard to any any actual thought of praise in one's heart to Jehovah, it becomes a form of swearing.
"Bless you", of course, is usually a form of prayer of wishing God to bless another. I often use expressions such as "God bless you", or "Jah bless", or something similar. However, even the heathen use this expression "bless you" to invoke the "blessing" from their gods on someone or something, or even to "curse" a person.
Of course, it is proper to bless others, but when used routinely, it becomes meaningless words added to one's "yes" and "no". Used ritualistically to invoke a spell to stop some evil from happening (such as the alleged idea of a person's soul leaving the body while sneezing), or to invoke a spell against someone, it becomes idolatrous.
Some other forms of swearing often used, "By God", "Holy Cow", "Holy Smoke", "Great Ceasar's Ghost", etc. Can you think of others?
The list of swear/curse words, however, could go on and on; most often people swear with the words that are often generally accepted socially without even realizing that they are swearing. We are constantly bombarded with forms of swearing and cursing at practically every turn, so it is easy to have our minds conditioned to mimic such expressions in our own speech. Practically every thing one might watch on TV has forms of swearing and cursing, and many popular songs also have such.
I will add that there are many lists of alleged "swear" words that may be found on the internet, but most of these appear to overlook many of the words listed above, and at the same time list a lot of words that, although they are defamatory terms, are not actually swear words. Nevertheless, all such rotten sayings are not appropriate for a new creature in Christ.
While we should all be endeavoring to bring our flesh in harmony with the spirit by endeavoring to refrain from any form of such swearing, the fact all of us do swear or curse at times shows that none of us are perfect, for he who has learned to control is tongue is a perfect human. -- James 3:2,8.
If however, such swearing is done willfully by the new creature (rather than just by the old flesh condemned in Adam -- Romans 5:12-19), then it is not a sin that can be forgiven, but it is a sin that is to death, the second death, for there is no sacrifice for such sin. -- Hebrews 10:26; 1 John 5:16,17.