We must pursue good and avoid evil.
Seek good, and not evil, that ye may live: and so the LORD, the God of hosts, shall be with you, as ye have spoken. Hate the evil, and love the good, and establish judgment in the gate: it may be that the LORD God of hosts will be gracious unto the remnant of Joseph.
We must strive for justice in this world.
But let judgment run down as waters, and righteousness as a mighty stream.