Disputable Matters part 2 Romans 14:1-15

How do we treat our brothers and sisters in Christ who have different convictions then us when it comes to disputable matters like, dress, music, food, drink, movies, child-rearing, etc. Do we try and change each others opinions, do we fight for our own rights? Here in Romans 14, Paul makes a theological mountain out of an ethical molehill and he tells us how God treats people of all different cultures and backgrounds, and we are taught here that in light of God- this is how we are to treat each other.