Have you ever been in a disagreement with someone...and started to question their Christianity? No I'm sure you haven't. But some people experience this every day. One might think: "Christians don't have arguments! And if they did, one of them is wrong and needs to repent! They fell from grace!" Not all disagreements are clear cut and Acts 13 and 15 show us a "Sharp Disagreement" between Paul and Barnabas and what was the end result. Could something good or even positive come out of a disagreement between two believers? Can we Agree to Disagree...and it not be a sin?