If God wanted to spread a belief in Him, why did he create only one son, Jesus, and plant Him in Israel?
Why didn't God send multiple sons to all the nations of the world to spread His word? His lack of action in the above just doesn't make sense ............
Adam’s descendants knew of the One True God, and His commandments. The desire to violate God’s commandments led to paganism.
God started over with Noah, and the Seven Laws of the Children of Noah. The desire to be free of God’s commandments led again to paganism.
Individuals taking it upon themselves to proclaim God and His laws wasn’t working, so God chose Abraham and his descendants to transmit the message as a family heritage.
Since the scattering of the Jews to all corners of the earth, even pagans like Hindus acknowledge one overarching Higher Power.
http://www.chabad.org/kabbalah/article_cdo/aid/380332/jewish/The-Mitzvot-of-Non-Jews.htm