I am the root and the offspring of David, and the bright and morning star. ~ Revelation 22:16 

We are living in a time when many are using the word root in an effort to preach another gospel other than the grace of Christ, claiming that Christians need to discover their Jewish roots or their Hebrew roots. Yet Christians do not have Jewish roots because Jewish culture is not the root of our faith. Christians have spiritual roots, and Jesus Christ is the root of our spiritual lives through the faith of Abraham.

In Galatians 3, the apostle Paul tells us that God preached the gospel to Abraham when he gave the promise that through Abraham all the families of the earth would be blessed.

And the scripture, foreseeing that God would justify the heathen through faith, preached before the gospel unto Abraham, saying, In thee shall all nations be blessed. ~  Galatians 3:8 

Paul then tells us that the covenant which God gave to Abraham was confirmed in Christ (v.17), and Christ is the seed to whom the promises were made (v.16). Therefore, Christ is both the root and the heir of the promises God made to Abraham.

God’s promise to Abraham, to make him the father of many nations, is fulfilled in Jesus Christ.  

Ethnic Israel is not the root of the Christian faith, neither is Jewish customs, culture, or tradition. Jesus is the root of the Christian faith, and in Jesus the fullness of God is revealed.

Writing to the believers in Colosse, Paul  tells them to be rooted and built up in Jesus Christ ~ Colossians 2:7a. Paul also tells them to mortify the deeds of the flesh because we have put on the new man, which is renewed in knowledge after the image of him that created him. ~ Colossians 3:5-10

We are renewed after the image of Jesus, for it is Jesus that created our new man!

Paul goes on to tell us that in Jesus there is neither Greek nor Jew, circumcision nor uncircumcision, Barbarian, Scythian, bond nor free: but Christ is all, and in all. ~ Colossians 3:11

As Christians we are called to be identified with Christ by living holy and godly lives. Our spiritual roots are found in the person and finished work of Jesus Christ, whether we are Jews or Gentiles.
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Israel and the Cross 

https://michaelbattle65.wordpress.com/2017/12/14/israel-and-the-cross/