Who can stand before his indignation? Who can endure the heat of his anger? His wrath is poured out like fire, and the rocks are broken into pieces by him. The LORD is good, a stronghold in the day of trouble; he knows those who take refuge in him (Nahum 1:6-7).
Notice the seemingly stark contrast here in God who is both good and also exhibits wrath and anger. Back-to-back verses. If the God you believe in is not both good to those he knows and wrathful toward his enemies, then you are believing in a false god.