We are fooling ourselves if we call God, by the name G-d, and clarify His identity as the God of Abraham, Issac, and Jacob, because His name includes His authority and character, which is Provided in Jesus Christ, the Son of God, who was given faith by Abraham, Isaac, and Jacob.
Many racially Jewish Hebrews today assert Jesus Christ could not be who He claimed, because God is Spirit. This is errant because He chooses where He will dwell and the Incarnation was the indwelling of God in man. This is not understood, except by the believer, because the unbeliever lacks the perception of spiritual things as the natural man.
Prior to the Incarnation, God embued His Spirit upon some believers, but His dwelling place was also identified by His Shekinah Glory.
In the Church Age, after Jesus Christ was resurrected and Ascended to Heaven, God the Holy Spirit was sent to convict us of sin, righteousness, and judgment. He indwells every believer today.
Those who truly seek to worship the G-d of Abraham, Issac, and Jacob may do so only by recognizing and placing faith alone in what He has provided for our Perfect Sacrifice. Once that faith is placed, and we recognize and place our sins on His Perfect Sacrifice, then God is free in His perfect Holiness (His righteousness and Justice) to provide a regenerated human spirit in the believer and in there He indwells.
The Holy Spirit is required for the further sanctification of the believer, which is not possible without God performing His work of faith in us.
We then study His Word, so that God the Holy Spirit may use that faith (doctrine) in our soul and form it into wisdom, slowly sanctifying our heart.
Rely on what He Provides, His Authority, and His Law by which we may abide in one another through faith and love of our brother. (Interestingly, the 3 things He maintained in the Arc of the Covenant.)
The indwelling of God the Holy Spirit in believers isn't unique to the Church Age. In the Millennial Reign, He will only indwell the Jewish believers.
Ooookay, believe whatever you would like to believe. I get the sense that you are a moral person (with imperfections, like ALL of us, that you are trying to remedy). Take my advice: do as you wish, but abide by the 7 Laws of Noah. You do that, and you have a place in the World to Come (i.e. Heaven). Doing so does NOT require that you be Jewish (the first Jew, Abraham, came 10 generations after Noah), just that you act in a moral manner. The rest of your beliefs and practices are up to you.