When a mother recently asked how to teach her son about God when she is Jewish and her husband is Christian, I replied saying the following.
The good news is Jesus Christ was a Jew, as were His apostles and the majority of His disciples during His earthly ministry.
Beginning and building upon your Judeo-Christian values is a great place to start. Even the apostle Paul (whose ministry was primarily to the Gentiles) acknowledged the Judaic roots from which Christianity originates and is to this day upheld (read chapter Romans 11 in the Bible).
I journeyed to Israel, the land of the Bible, for the first time last year and enjoyed it thoroughly. There are many wonderful spiritual tours you can take concerning the ministry of Christ and thereby simultaneously connect with both your Jewish and Christian roots.
Jesus Himself strictly kept and adhered to the law of Moses, fulfilling it entirely. The difference is the Judaic law is a shadow of the substance of better things promised by the Jewish prophets in Christ.
God spoke through the Jewish prophet Ezekiel saying, "A new heart will I give you, and a new spirit I will put within you: and I will take away the stony heart out of your flesh, and I will give you a heart of flesh. And I will put My Spirit within you, and cause you to walk in my statutes, and you shall keep my judgments and do them" (Ezekiel 36:26-27).
Christ was a child of the Holy Spirit (Matthew 1:18), born of the virgin Mary as foretold by the Jewish prophets. Christ came not to fight and wrestle over religion and the many rules that man-made religionists impose upon people, but rather to bring about a spiritual new birth within the heart of mankind (John 3:1-17) and thereby build a spiritual kingdom (Luke 17:20-21; Romans 14:17) to bring heaven to earth.
Therefore the letter of religion kills, but the Spirit and heart of the Creator imparts love, life and liberty (see 2Corinthians 3:6).
Transcend religion and tradition to taste and see for yourself that God is good!
Religion can be boring and constraining, whereas the Creator is always fun, loving, liberating and life-giving.
You will best learn and teach your son (and yourself) theology, as you happily travel together to explore your world, have fun experientially and rejoice in the Creator and creation making new discoveries daily.
Paul F Davis - author of God vs. Religion and worldwide minister
info @ PaulFDavis.com