The gospel in the OT

I want to study how to share the Gospel with a Jew who doesn't want to hear the New Testament and doesn't want to hear about Jesus (or even Yeshua).

These are some resources:
https://www.chosenpeople.com/share-gospel-old-testament/
https://www.accordancebible.com/article/gaot-series/
https://www.appleofhiseye.org/learn/jewish-evangelism/the-gospel-in-the-old-testament

We will examine two of them and just point to the other one.