'Unscrupulous' in the Bible

Do not envy a man of violenceAnd do not choose any of his ways.

said, "You who are full of every kind of craftiness and unscrupulous cunning--you son of the Devil and foe to all that is right--will you never cease to misrepresent the straight paths of the Lord?

So that we are no longer children [spiritually immature], tossed back and forth [like ships on a stormy sea] and carried about by every wind of [shifting] doctrine, by the cunning and trickery of [unscrupulous] men, by the deceitful scheming of people ready to do anything [for personal profit].