In Wikipedia one needs reliable sources when editing an article. Did you check out the link that I provided about the Gospel of Matthew? It has articles in the foot notes that they quoted from with links to some of them. They do not get to "just say things".I notice some sites, including wikipedia, make decisions that are simply decisions, not necessarily true. So one must be aware. It's similar to the ideas about evolution, including dates. Assertions are made but -- (many buts)...you know like, but but but.
Evolution was not being discussed here, but you can find the a original works yourself if you want to. They are all based on rather solid evidence.