Isaiah 5:20. “Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that put bitter for sweet and sweet for bitter.”
The subversion of moral principals had become rampant in Judah and Jerusalem. You cannot worship some man-created god and still pretend to practice true godliness. The two things simply cannot exist in the same space.
I keep going back to something a pastor of ours said many years ago: Sin will always take you farther than you intended to go. It is like a whirlpool–wide and slow-moving at the top, but once you are caught in, and it circles downward, it narrows and goes faster and faster until you are without escape.
Any society can legalize sin if they choose to do so, and maybe that makes people feel better about whatever they are doing that is against God’s truth. However, legalizing sin does not make it acceptable to God. In our pitiful pride and self-confidence, we look at God and say, “But we made a rule that it is okay now to kill babies!” or whatever other heinous act we now accept as normal. God will not be impressed. He never changes, and we are foolish to believe that we can function against His power and still escape destruction.