The utter lack of imagination or thought put into arguments. Reading an tract or an article or a story written by a Christian explaining some aspect of his belief, and it will be constructed of about 75% Bible quotes. Yeah I know that's what the Bible says (and BTW there are an equal number of verses that contradict those you mentioned), but I want to hear YOUR opinion, what do YOU think? You think you're going to be the next C.S Lewis by just padding your essay or story with 75% quotes? That will get you a D if you try that in community college. I think this trait might be a symptom of a larger problem of not being able to think about a subject, and instead plugging in a Bible verse.
The phrases "Repent!" or "Accept Christ," which is basically code for "submit" "admit that I'm right" or "see the world as I do or else!" Also "Salvation is a free gift." No, it isn't. As soon as you join a church you're going to be told what to do in the interest of "Serving Christ." If service is required, then isn't free!
Bringing the topic of abortion into every discussion, and acting like it is an inherently christian belief when the Bible says NOTHING against abortion (unless you really, really twist some verse), but has many, many sections describing men of god killing children and babies.
Any time they bring up God feeling offended or saddened by the sinful acts of our times. If he is omnipotent then he wouldn't need to wring his hands in helpless frustration. Clearly if he exists and he is omnipotent and he is not stupid or insane, then this world is exactly the way he wants it. Otherwise he could just snap his fingers and eliminate homosexuality, stop all abortions, fill everyone's mind with knowledge of him, turn the devil good, stop all the killings and wars, etc. Even Christians admit that he will eventually do this, but only after brutally annihilating the world twice sometime in the future if Revelations to be believed. But my question was what was stopping him just making his creation however he wanted it from the beginning if he was omnipotent?
"God is fed up with these sinful times." or "God's patience is running out." Infinite beings don't run out of patience, you moron! You ascribe very human frailties to your supposedly perfect god.
"God have mercy on us." A meaningles statement. If one is a believer than God will still inflict terrible things on them if the Book of Job is any indication. If one is a nobeliever, then no mercy will be extended to them anyway. If they become a believer, see the first point.