It's not only cults that take verses from the Bible and twist them, or take them out of context, to try to prove their false doctrine, but some Christians do this as well---especially many televangelists and some popular Christian book authors.
Some televangelists, and even Pastors, are fond of doing "word studies." Now, Lexicons (i.e., a Greek Lexicon) are great for Bible study when used properly (note: the 'lexicon' of a language is its vocabulary, including its words and expressions). But to the uneducated, they can quickly make some word or passage in the Bible say nearly anything you want, if you don’t use the proper procedures. Often, a televangelist or preacher will have a point to make, so, using a Lexicon, they look at every possible or conceivable angle, until they find something close, and then they twist it around to make their point. Using a Lexicon like that is very dangerous and completely irresponsible. Context is the key. Taking verses out of context, and comparing them to other verses out of context, is not only how cults and some Christians find their so-called 'proof texts' for their false doctrines, but it's also the method some non-Christians, seeking to discredit the Bible, use to try to show that the Bible contradicts itself. In addition, people will sometimes quote a Bible verse out of context in order to justify their argument. In such a case, when the verse is checked in context, you will find it does not support their claim. Such "reading into the text" (i.e., trying to make the text mean something it was never meant to mean) is called eisegesis. Cults are masters at eisegesis, but it’s also a danger for Christians. Christians who support the Gap Theory, for example, are reading into the text things that the text never says.
While a particular passage may have many applications, it has only one meaning - the one the author (through inspiration of the Holy Spirit) intended. Hermeneutics is the science that teaches the principles and methods of interpreting the Word of God. Proper hermeneutics provide tools to help ensure that we are basing our interpretations on the truth as God has revealed it, while avoiding error to the greatest degree possible.
The Error of Taking Verses Out of Context
The Error of Selective Citing of Bible Verses