When it comes to the Jewish people, nothing is simple. The chosen people of God as found in the Tanach (Deuteronomy 7:6-8), are also the targeted people of Satan. We read repeated biblical accounts of how our enemies wanted to destroy us (Pharaoh, Haman or the Amalekites to name just a few) and also how God promised to never allow for the Jewish people to completely be eradicated (Jeremiah 31:35-37.)

As it stands, God’s plan for mankind really revolves around the Jewish people from start to finish. We shouldn’t ignore that when God defined mankind and set the story in motion, we received 11 Genesis chapters on mankind and 39 on the Jewish people. God is certainly not finished with the Jewish people as we see that His program will culminate when Israel calls upon the Messiah (Zechariah 12:10) and usher in His Second Coming.

https://www.newantisemitism.com/antisemitism/what-does-it-mean-to-be-jewish

1 Corinthians 15:1-4

Now I make known to you, brethren, the gospel which I preached to you, which also you received, in which also you stand, by which also you are saved, if you hold fast the word which I preached to you, unless you believed in vain.

For I delivered to you as of first importance what I also received, that Christ died for our sins according to the Scriptures, and that He was buried, and that He was raised on the third day according to the Scriptures,

Ephesians 2:8-9

For by grace you have been saved through faith; and that not of yourselves, it is the gift of God; not as a result of works, so that no one may boast.