“The heavens declare the glory of God, and the sky above proclaims his handiwork. Day to day pours out speech, and night to night reveals knowledge. There is no speech, nor are there words, whose voice is not heard. Their voice goes out through all the earth, and their words to the end of the world. In them he has set a tent for the sun,” – Psalm 19:1-4
In this psalm David accounts how, the natural world shows evidence of God to every nation. Every people group sees undeniable proof of the Creator. As Paul says (Rom 1:18-23) when he references this psalm, the unrighteous suppress the truth because it has been plainly revealed to them in nature. No man has excuse in saying he did not know God existed. Proof of God is found in the natural world and to deny the Lord’s authorship is to deny the Lord. Proof of God in nature is not hidden or subtle. General revelation is sufficient to make all creatures accountable to God.
Men who deny God in nature do so boldly and knowingly. Man’s sin prevents his submission to God. Science proves the authorship of God. To see the majesty of the Creator and deny it is his authorship can only be a result of conscious sinful thought. Martyn Lloyd-Jones said, “We fail to see this glory because we are so blinded by sin. We look into the skies and think of stars in terms of the scientists’ view of distance. But the Psalmist sees the glory of God. God has made the stars, and set them in order; He set the planets in their courses.” God’s providence over the world is not disproven by science, but science helps prove the composition of God. Only a perfect Creator could paint the canvas of the heavens so magnificently.
In the natural world man sees proof of God. Because of this irrefutable evidence man is compelled to seek after God. A refusal to do so is a damnable heresy. There is no innocent tribesman in the deepest jungle whose sins will be forgiven because he is ignorant of God. Every man is born with proof of God woven into his being. If we do not seek after God we purposefully suppress his existence.
 David Martyn Lloyd-Jones, God’s Ultimate Purpose: An Exposition of Ephesians 1 (Edinburgh; Carlisle, PA: Banner of Truth Trust, 1978), 132.