The idea for the American government’s divided powers came directly from Scripture. Isaiah 33:22 says,
“For the Lord is our Judge [the judicial branch], the Lord is our Lawgiver [the legislative branch], the Lord is our King [the executive branch].”
Our Founding Fathers knew that separated powers were needed because of man’s inherent sinfulness and desire for control—and what better model could there be for a government than the Lord who governs the universe.
Theodore Roosevelt said, “The teachings of the Bible are so interwoven and entwined with our whole civic and social life that it would be literally—I do not mean figuratively, I mean literally—impossible for us to figure to ourselves what life would be if these teachings were removed.”
From, The Evidence Bible