There is always a tension between the purity and unity of the church. How do Christians decide how much weight to put on certain beliefs? Here is how I think we need to figure out how to plant flags wisely.
What are the sure signs that you are a authentic Christian? Bible reading, praying, church attendance, right answers to theological questons, concern for social justice, and acts of service, are all necessary to grow in Christ. But none of these is definite evidence that you are truly a child of God.
A book I wrote came out today. It's called Life's Biggest Questions: What the Bible Says about the Things That Matter Most (Crossway). I pray it will help people to know God and his truth better.