Galatians 6:17-18
17 From henceforth let no man trouble me: for I bear in my body the marks of the Lord Jesus.
18 Brethren, the grace of our Lord Jesus Christ be with your spirit. Amen.
When I was younger, I would let people who challenged my beliefs get under my skin. I would get upset when people tried to persuade me that my faith was misplaced. As I got older I began to realize that this was pointless. If I am steadfast in my faith and I know that Christ died for my sins, why get upset about people who attack my beliefs for no reason. Now I just smile and go on. People are going to attack you. It may be that they think the entire Bible is wrong or they cannot accept it because it condemns their life style. If you have studied, know the scripture, and have peace in your heart about it, then just ignore them. We know Jesus is our saviour. We know our sins are payed for. So there is no reason to argue, just smile and pray for them.