If your doctrine is off, then your emotions will be off. You will be feeling good about things that are wrong, and feeling bad about things that are right. The issue of truth in the church is so vitally important. Some churches are preaching the message today that it's alright to go to a club on Saturday night as long as you are in church on Sunday morning. They make you think that it's alright to smoke a little weed on Friday night, as long as pay your dues on Sunday morning.
Sin is sin.
And if you get offended by someone who tells you that what you are doing is wrong, then talk to God about it. When you do not stand on the truth, the third thing missing in your life is God's law. When God's law is missing, then chaos appears. Our nation has replaced God's law with their own rendition of truth. Lines of right and wrong began to be blurred, and in time, all sorts of ungodly behavior became acceptable and even admired.