'Treacherous' in the Bible

"Son of Man, when a nation sins against me by a treacherous act, I'll reach out to oppose it, destroying its source of food, by sending famine against it, and by destroying both people and beast within it.

But when the righteous person abandons his righteous deeds and commits evil, detestable practices, as wicked people do, he won't live, will he? None of the righteous acts that he had done will be remembered. He'll die in his treacherous unfaithfulness and sins that he had committed."

"Therefore, Son of Man, you are to speak to the children of Israel and tell them, "This is what the Lord GOD says: "Your ancestors also blasphemed me in their treacherous behavior against me.