Anger never does the will of God. Even God satisfied the wrath or anger of Justice by forgiving. This act turned out to be the great work of our redemption where he had to bear the pain of man's rebellion thus satisfying the a just anger. So we also ought to forbearance with one another and forgiving one another even as God for Christ sake has forgiven us.
Note when we choose to forgive one another, we are the ones that bear the pain so that the other won't bear it. Same was shown towards us by God the father.