Someone I respect greatly at my church said exactly this less than a week ago. Sin is at the root of all of this division. All the people saying "Do what feels good," "Follow your heart," "You're a good person," are ignoring real life. My friend would say, "Do what's right," "Follow Jesus, "Nobody is good." We are all sinners, and that's why Jesus gave his life on the cross." It's funny to watch his face when someone says, "I'm a good person." He'd say, "No, you're not, and neither am I, but Jesus died for both of us." The difference is that Christians recognize their sin instead of denying it, pray for God's guidance rather than seek human approval, and feel compelled to share the Gospel. Christians do good works to follow Jesus and demonstrate His love and kindness, not because it will get us to heaven, because human deeds can't do that. Just Jesus.