Acts 10:30-35 :
Cornelius said, “Four days ago, I was fasting until this hour, and at the ninth hour, I prayed in my house, and behold, a man stood before me in bright clothing, and said, ‘Cornelius, your prayer is heard, and your gifts to the needy are remembered in the sight of God. Send therefore to Joppa, and summon Simon, who is surnamed Peter. He lodges in the house of Simon a tanner, by the seaside. When he comes, he will speak to you.’ Therefore I sent to you at once, and it was good of you to come. Now therefore we are all here present in the sight of God to hear all things that have been commanded you by God.”
Peter opened his mouth and said, “Truly I perceive that God doesn’t show favoritism; but in every nation he who fears him and works righteousness is acceptable to him.
What Peter was learning from God since his vision becomes more clear in this passage. It may have been that the Jews in those days commonly held an incorrect view of the relationship between God and the Gentiles. Even though the Jews really were God’s chosen people, God didn’t show favoritism. We see here that both the Jews and the Gentiles were expected to live up to the knowledge that they had of the God of Israel. It makes sense that the Gentiles knew less about the God of Israel than the Jews did but God recognized the faith of both and accepted people based on believing what He had revealed to them individually. God judges each individual according to light He has given him and expects every one of us to come to Him based on that revelation. God is quite capable of showing a person who He is, even if a person doesn’t know much about the Bible.
It is important to realize that not any religion or “god” is acceptable, because there is only one true God, and the Bible makes it clear that false gods also exist and can never replace the one true God of Israel. We may only know a small amount of this God before we are told more about the Bible, but we should recognize that He is much different than the false gods of other religions. The one true God expects us to see the difference based on what He has revealed to us about Himself in creation and in our conscience. It’s heavy reading, but I recommend that you study what the Bible says for yourself instead of taking this from me. You can find it in Romans 1:18 – 2:16 which explains the issue more accurately in great detail. (Sneak Preview: The Bible book of Romans was written later by Saul.)