This seems to be such a common occurrence among Christians that I really wanted to discuss it - if for nothing else that you might be able to anticipate it's occurrence, spot it when it occurs, and call the Christian out on the carpet for attempting it.
Bearing False Witness for God (aka - Breaking God's command to prove God's command)
Exodus 20:16 - Thou shalt not bear false witness against thy neighbour.
Proverbs 6:16–19 - There are six things that the LORD strongly dislikes, seven that are an abomination to him: haughty eyes, a lying tongue, and hands that shed innocent blood, a heart that devises wicked plans, feet that make haste to run to evil, a false witness who breathes out lies, and one who sows discord among brothers.
The basic scenario goes something like this: You are debating a Christian on a particular subject of philosophy, theology or science and begin to notice the Christian misrepresenting your position (Strawman fallacy). Now, in and of itself this is not the sin of bearing false witness. However, as the debate moves forward you notice that the Christian deliberately continues to misrepresent your position even after you have notified them that they are doing so. In other words, after they have been instructed that your position is X, they continue to put words in your mouth (twisting the truth) by saying that your position is Y and attacking that position.
This is deliberate deceitfulness and it is completely out of step with nearly every Christian theology on earth. Yet Christians still do it as a defense mechanism to protect their faith from refutation. So when the Christian does this he/she is effectivelybreaking the rules of his/her own religion in an attempt to argue for it (aka - Bearing False Witness for God). Kind of ironic, eh?
Christian - "You are an atheist. So that means you believe there is no God"
Non-Believer - "No, atheism is a lack of belief in a God. I do not have a positive belief about the subject. I lack belief (just like I lack belief in unicorns)"
Christian - "Well, if you don't have a belief then that must mean you think there is no God!!"
Non-Believer - "No, it does not mean that. It means I do not currently hold a belief in a God (not that I could not hold that possibly in the future)"
Christian - "But that means you don't believe in a God, which means you think God doesn't exist!"
Non-Believer - "No, it does not mean that."
This occurrence is so common amongst Christian apologists online (and elsewhere) that they don't even realize they are doing it. In fact, it very often happens during science discussions (pertaining to evolution, cosmology, or what have you). The apologist will perpetually twist the words of his opponent in order to make it easier for him to argue while continuing his/her faulty position.
Has anyone else ever seen this happen? What other examples can you bring? How might you best deal with a situation like this when it arises? I often wonder if we can find pure outright lies/forgeries from Christians trying to defend their religious beliefs like this, as it seems that this tactic is so prevalent today. Isn't this just a last ditch effort to protect their emotional investment? What do you think?