Folks, let's talk about discernment. Charles Spurgeon once said, "Discernment is not knowing the difference between right and wrong. It is knowing the difference between right and almost right."  
In our Information Age, we are bombarded with so much information that it gets difficult to tell the difference between what is correct and what is not. It's easy for most to see what is right, but those "almost right" can be difficult to see. Recently, a lot of people have been given a spotlight for being almost right. They have amassed a huge social media presence for these half-truths. 
The best way to combat this is with the truth. Do your own research; don't trust what anyone tells you. For example, your beloved pastor preaches on a controversial topic. The best thing you can do is open up your Bible and read it, and most importantly, pray about it. As it says in 1 John 4:1, "Beloved, do not believe every spirit, but test the spirits to see whether they are from God, for many false prophets have gone out into the world."