This episode mostly contrasts the essential characteristics of the kingdom of darkness and those of the kingdom of Christ, pointing to inevitable conflict in a so-called "Christian state." All men are naturally born into the kingdom of darkness, driven by "the big three," "the lusts of the flesh, the lust of the eyes, and the boastful pride of life." (1 John 2:16) Once a person becomes a Christian, he/she progressively identifies more with the Kingdom "big three": "righteousness, peace, and joy in the Holy Spirit." (Romans 14:17) Unfortunately many believers in the U.S. are at best "carnal Christians," in which worldly identity markers largely predominate over Kingdom characteristics. The episode then posits a grossly optimistic scenario in which 51% of American believes are substantially sanctified, motivated and identifying with the kingdom of Christ. Specifically Christian laws generated by a "Christian state" would inevitably produce a clash of the kingdoms, where the Big 3 of each would naturally collide in the public sphere. The ostensible solution, enshrined in the establishment clause of the Constitution, prohibits Congress from setting up a national church-state establishment presiding over all.
You Worship what You Serve
This episode narrowly focuses on the condition of fallen mankind in which the image of corruptible man is worshipped, principally through self-centered lusts. This idolatrous worship taints all so-called "good works" that proceed out of man as he prioritizes his lusts. Immediately after describing the great exchange, in which mankind exchanges the glory of God for an image in the form of corruptible man (Rom. 1:23-25), Paul declares that God gives man over to his lusts. God allows him to pursue, in the words of John, "the lusts of the flesh, the lusts of the eyes, and the lust for reputation ("the boastful pride of life") (1 John 2:16) While most unbelievers would never admit that they worship themselves, the continuous servicing of the "lusts of deceit" reveal the true object of worship. We worship what we predominantly serve (Mt. 4:10), and "the image in the form of corruptible man" is practically indistinguishable from the lusts that consume him. Critically, the service of his lusts, colors all his "good works," even rendering them disgusting. Isaiah therefore concludes that "all our righteous deeds are as filthy rags." (Is. 64:6)
None Does Good, Not Even One
This episode surveys the Scripture's bleak assessment of human ability to do good. The Biblical standard of "goodness" is perfect consistency with outwardly good works and the heart that produces them. Paul mastered the former, describing himself as "blameless" in outward keeping of the Law (Phil. 3:6), but condemns himself as a law-breaker regarding coveting (Rom. 7:7). His failure to produce good works from a law-abiding heart means that he doesn't meet the standard of goodness. And he extends his assessment of himself to all mankind in Rom 3:12: "there is none who does good, not even one." Christ commented that John the Baptist was the greatest man "born to woman," but insisted those "least in the kingdom of God" were greater than he. John the Baptist, like Paul, excelled in outward manifestations of righteousness, but lacked the regenerate heart essential to producing truly good works, where outwardly "good" works flow from a heart that perfectly loves God and neighbor. Unbelievers consequently cannot produce "good" works since all works ultimately flow from an unbelieving unregenerate heart.