1:19-21 Is this teaching that all human beings have a basic knowledge of God?

Yes, although the revelation of God through the gospel of Christ is not in view here, scriptures clearly teach that all men have a basic knowledge of God. He has made Himself known to all humanity by His creation.

Heaven and earth both declare His glory. The sun, the moon, the stars all shout out praise to the God who made them; the animals, the birds of the air, the fish in the sea, even the earth itself; the rain and the snow, the bees that gather nectar to make wax and honey and pollinate trees to bear fruit all teach us of their Maker (CP Job 12:7-11; Psa 8:1-4; 19:1-6; 75:1; 148:1-10; Ac 14:17).

All of creation manifests God's glory and makes Him known to men, but sadly most men repress this knowledge of God. Kenneth Wuest in his Word Studies in the Greek New Testament sums it up like this, "Through the light of the created universe, unsaved man recognizes the fact that there is a supreme being who created it, who has eternal power and divine attributes, a being to whom worship and obedience are due.

This is the truth which unsaved man is repressing and herein lies the just condemnation of the entire human race, since it has not lived up to the light which it has. That is why man has no excuse or defence for his actions." (CP Ro 1:20).

Scriptures also teach that the knowledge of God is written in every man's heart, to which their conscience bears witness (CP 2:14-15).

This teaches that the conscience bears witness to men's obedience to God's truth, or condemns them for disobedience. It proves that God has not left anyone without light sufficient to justify or condemn them in the judgement (CP V15-16).

Finally, the knowledge of God has also been handed down by humans from one generation to another (CP Psa 145:3-7; Ac 17:22-27; Ro 10:18). God never tries to prove that He exists, but He says that whoever denies His existence is a fool (CP Psa 14:1).