My best friend's sister goes to a non-demoninational Christian church. She posted today on FB that she is really frustrated when people pick and choose out of the Bible passages that suit their needs, and that everything in the Bible is the truth.
Two comments later she says, "
Also, a lot of things in the Old [Testament] were set in place for when Jesus came to Earth and are no longer needed."I responded that saying things in the Old Testament were irrelevant is picking and choosing. Her boyfriend jumped in and turned it into a debate on Catholicsm, and then proceeded to tell me that my doctrine was false. Italics are his response:
We do not adhere to anything but what the Bible teaches. If we want to talk about picking and choosing what to believe I have got to ask about your "Catholic" beliefs. Can you please show me in Scripture where it says that a priest isn't supposed to marry? What about confessing your sins to a priest to be given forgiveness? What about penance? What about purgatory? What about indulgences? What about worship of Mary or the Saints? What about transubstantiation? What about earning grace? Mary as co-redemptrix?Read the Word and get out of false doctrine and bad theology. Much love. 
I defended the teachings, and he went on to say that by offering our prayers to Mary, a saint, or a priest in confession is considered idolism and Mary cannot pray for us "beacuse she is dead." He also said "Holy Mary, Mother of God" is incorrect because she was the mother Jesus.
I don't usually let ignorant people bother me this much. But this really irked me because he flat out said my beliefs were false when I was merely defending the fact that the Old Testament was still relevant. Ugh!
Sorry, vent over!
How do you deal with something like this when it comes up?