Isaiah 5:20

The fourth bad product of the Israelite vineyard was perversity. The people were calling good what God called evil, and vice versa. For example, glorifying adultery and treating committed believers as dangerous radicals turns the truth on its head. They were mocking God’s ways publicly and privately. They refused to accept the standard of God’s revelation.

"Moral standards were destroyed by new definitions of sin (see Amos 5:7), people using God’s vocabulary but not His dictionary." [Note: Wiersbe, p. 17.]