Thus says the LORD of hosts: Render true judgment, and show kindness and compassion toward each other. Do not oppress the widow or the orphan, the alien or the poor; do not plot evil against one another in your hearts.
Zechariah 7:9-10
and let none of you plot evil against another in his heart, nor love a false oath. For all these things I hate, says the LORD.
Zechariah 8:17