Paul’s sermon before the Areopagus is a masterful summation of Christian theology.
First, our God is the creator of heaven and earth. This doctrine is not optional for Christians. Our God maintains He is the creator. If, in fact, He did not create our world, He lies. But Paul’s point is to identify God as supreme because He is the creator.
Second, His creation of heaven and earth gives Him sovereignty over it all, just as his creation of all nations gives him authority over all people.
Third, because God has created all things, He needs nothing from His creation. God is a provider, not a “needer.”
Fourth, God has created mankind and his environment so that mankind would worship Him.
Fifth, because we are God’s children, we should not think that God is like some idol.
Sixth, God has appointed a day in which He will judge all mankind, and He will do so through Jesus. whom He raised from the dead.
Had Paul been able to complete His sermon, we would have a superb compendium of theology. But he doesn’t. He is interrupted. But this can serve as a starting point for us, as we consider our life under God and what He calls us to believe – and why we should believe it.