O you who believe! be establishers of witnesses with justice for (the sake of) Allah. And do not let the hatred of a people incite you not to act justly. Do justice, that is nearer to guarding (against evil), and fear Allah, Allah is certainly informed of what you do.
Justice has to be done even with people who hate you (and whom you hate). Justice is associated with fearing Allah (SWT) and keeping away from sin.

