That it true BUT this verse is identical to Mark 7:19 (It is believed that the author of Matthew copied much of Mark)
Mark 7:19 “Are you so dull?” he asked. “Don’t you see that nothing that enters a person from the outside can defile them? 19 For it doesn’t go into their heart but into their stomach, and then out of the body.” (In saying this, Jesus declared all foods clean.)
So the point stands.
The Bible was written by Jews, about Jews, basically to Jews. Yeshua fulfilled the prophecies about His coming. He was a Jew, not a Gentile. His mother was a Jew. A Gentile messiah wouldn’t exactly fulfill Scriptures.=)
Yes, they bible was written by Jews, about Jews...and Jews have looked closely at the "fulfilled" prophecies for 2000 years. He did not fulfill them. The "300" or so claims of fulfillment are either not prophecies at all, are not about Jesus (usually David) or taken out of context.
Did he rebuild the temple? No, it was still standing. Did he bring world peace? No the world has been even more bloody in part over him. It there universal knowledge of G-d? No...not at all. Are sacrifices and the priesthood restored? No. Are the gentiles streaming to Jerusalem to learn of G-d and his law? No.
Since Jesus failed at these the church had to invent the second coming. This is taught nowhere in the hebrew bible. There will be one messiah ben David, he will accomplish all things during one normal human lifetime. He will not be divine. He will not be G-d himself.
So, the Jewish messiah ben David has not yet arrived but by the looks of world events...will soon.
Jesus is the gentile messiah since he meets Christian requirements....not any Jewish ones. He will never return.