Erin, you make the point that Christ Himself was a Jew, and that the Gospel was preached to the Jew first and then to the Gentile (Romans 1:16, as well as throughout that book and Acts). Also on Jewish tradition being the foundation for Christianity, since it is literally the fulfillment of what the Old Testament foretold and looked forward to. However, I would also be cautious about making the relationship between Christianity and Judaism the primary motive behind how we treat the Jews. Many Christians, including official RCC doctrine for some time, argued that the Jews had rejected Jesus and been punished for it (a plausible, if twisted, interpretation of Scriptures), evidenced by the turning over of the Gospel to the Church. Thus the Jews were worse than the Gentile races and actually deserved to be punished by God. It is easy enough for me to retort that the nation of Israel still has a part in God’s plan (Romans 9-11…), but at the root, the reason we should treat the Jews with respect is the same reason we should treat any other nation with respect – they are made in God’s image, and while fallen, Christ died for them as He did for us, if only they will come to repentance and faith in Him.