People say it to be nice to jews so they don’t feel left out. It’s fairly meaningless.
ping for tomorrow.
On the contrary, Salvation is from the Jews. We received the Law from the Jews. There is no Christianity without the Jews. The Jews are God's chosen people and we don't get to Heaven without being adopted by Jacob (renamed Israel)(Gen 48). You cannot understand the Bible without knowing the Jewish customs and culture. The Bible was written by Jews to the Jews by Jewish prophets. Jesus is a Jew and His Apostles were Jews. Jesus lived as a Jew, followed all the Jewish Feasts and worshiped on the Jewish Sabbath. Jesus died as the King of the Jews and is now in Heaven as the Lion of Judah. There is no inheritance of Heaven without being adopted into spiritual Israel through the blessing of the cross as in Gen 48. All covenants were made with the Jews and Gentiles cannot take part in a covenant without joining Jacob in adoption. There are no covenants made with Gentiles without going through this adoption into Israel(Jacob).
If you have been adopted into God's family, then Jews are literally your brothers.