'Unfaithfully' in the Bible

"Son of man, when a land sins against me by {acting very unfaithfully}, then I will stretch out my hand against it, and I will break for it [the] {supply of food}, and I will send against it famine, and I will cut it off, [both] human and animal.

And I will make the land desolation because {they acted very unfaithfully}!" {declares} the Lord Yahweh.

and the nations will know that because of their guilt the house of Israel went into exile, {because} they acted unfaithfully against me, and I hid my face from them, and I gave them into the hand of their foes, and they fell by the sword, all of them.