Why did Adam and Eve hide from God after they ate the forbidden fruit?
Why did Cain (after murdering his brother Abel) lie to God when asked where his brother was?
How could men call upon the name of the Lord at the end of Genesis 4 (There was no: Tabernacle, Temple, synagogue, Bible, church, radio or TV)?
How could Joseph have refused the advances of his bosses wife by saying, “How could I do this great evil and sin against God?” That was 500 years before God gave Moses the Ten Commandments (the seventh is, “Thou shalt not commit adultery)!
The answer is simple, Ps. 19:1-4 says, “The heavens declare the glory of God; And the firmament shows His handiwork. Day unto day utters speech, And night unto night reveals knowledge. There is no speech nor language Where their voice is not heard. Their line has gone out through all the earth, And their words to the end of the world.
The creation speaks of the existence and God, and God wrote His moral law on every mans heart, so every man knows it’s wrong to murder, steal, lie, etc.
God’s revelation to man is called, “Progressive revelation.” He revealed His complete plan of redemption slowly over the course of thousands of years. So we look back 2,000 years to the cross for our salvation and they looked forward 2,000 years. Man can feel remorse for his sin and cry out to God for forgiveness because God put conscience in the heart of every man from the begining of time.