Many christians believe that eating pork is allowed in the bible.
In the old testament, the book of Deuteronomy and Leviticus forbids eating pork and other uncleaned animal.
This laws are among the mosaic convenant, is a set of instructions that was given to the Israelites.
Jesus thought us in the book of mark 7:19 saying that nothing that enters a person from the outside can defile them, because it goes into the stomach and then is eliminated.
Jesus has already declared all food clean, telling the Christian's that was from the ceremonial food laws of the old testament that he has made every food clean.
In the book of acts 10 the apostle Peter received a vision were a voice told him, what God has made clean, do not call it common, after that he was told to eat all kinds of animal that was forbidden.
Apostle Paul thought us in the book of 1 Timothy 4 that everything that is created by God is good, and also we should not reject it.
The new testament celebrates the freedom in Christ, were whatever we put in our mouth will not be a sin, but it has to be done with a clear conscience