Sour godliness is the devil’s religion.

From Matthew 4:8-10:  “Again, the devil took Him to a very high mountain and showed Him all the kingdoms of the world and their glory, and he said to Him, ‘All these I will give You, if You will fall down and worship me.’  Then Jesus said to him, ‘Away with you, Satan!  For it is written, ‘Worship the Lord your God, and serve only him.””