"The bible never says such a thing."
1 Corinthians 8
Matthew 15:10,11
Mark 7:14,15
Matthew 15:10 and Mark 7:14 say the same thing, though Mark felt it necessary to be more verbose, even in the King James.
A perfect example of a text that anti-nomians use to claim that Yeshua either violated or negated Torah, yet says nothing of the sort. I also noted how you failed to refer to the story in context.
Look at the context verse 1-2, said "1 Then Pharisees and scribes came from Jerusalem to Jesus and asked, 2 "Why do Your disciples break the tradition of the elders? For they don't wash their hands when they eat!"
This discussion has absolutely NOTHING to do with the Torah list of clean v. unclean foods and everything to do with "the traditions of the elders" which we would call either "oral torah" or the Talmud.
They were arguing over the extra-biblical requirements some Jews had in regards to keeping the Law, not the Law itself. The Pharisee's were simply upset that Yeshua and His disciples didn't go through the elaborate hand washings before eating their Kosher meal. As far as Talmud is concerned, if you don't do these prayers and washings, food which is otherwise kosher, is rendered unkosher, which totally contradicts Torah.
Mark 7:14,15
I find it interesting that you didn't want to refer to the entire text in this one either, but wanted to pick only verses 14-15 to make your point. If you read this text in context, going back to verse 5, you will find that the same conclusions apply. This story is not a discussion of Torah and kosher dietary laws but of talmudic rituals which obscure Torah and made it a burden for the people.
1 Cor. 8
Another text that has nothing to do with kosher v. non-kosher as lined out in Torah. By the way, non-kosher food, by the definition as laid out in Torah, which both Yeshua and Paul kept, is not food. The phrase "non-kosher food" is an oxymoron. Pork and other non-kosher food would have never been considered food by either Jews nor the early Chrisitians period.