Inc. All rights reserved. They say that a little bit of Greek is dangerous. Well, maybe being able to swim five yards is not too helpful, but I'd rather know how to swim five yards than not at all. What I usually find is that by the time my students have gone through my Greek classes, they're not acting too authoritative about Greek. They realize that there are enough technicalities and exceptions to require some balance and caution as they study a Greek text.
All words take on a special significance when viewed in light of their context.
Always be suspicious if a commentary you're using packs or loads a word with theological meaning and then traces it through the Bible and forces the context to fit that meaning. That's not the way any language works. There are certain basic meanings the word has, but it takes on additional shades of meaning in its context. The same kind of care should be used regarding tenses and conditional sentences. Only the context can reveal the kind of called-out group it is.