What would be said, if, when you thought the doctor necessary, you were to find fault with his instruments, because they cut, or cauterize, or amputate, or tighten; whereas there could be no doctor of any value without his professional tools?… Your conduct is equally unreasonable, when you allow indeed that God is a judge, but at the same time destroy those operations and dispositions by which He discharges His judicial functions.
Whence has found its way to the heretics an argument of this kind: If God is angry, and jealous, and roused, and grieved, He must therefore be corrupted, and must therefore die. Fortunately, however, it is a part of the creed of Christians even to believe that God did die, and yet that He is alive for evermore.
Discriminate between the natures, and assign to them their respective senses, which are as diverse as their natures require, although they seem to have a community of designations. We read, indeed, of God’s right hand, and eyes, and feet: these must not, however, be compared with those of human beings, because they are associated in one and the same name. Now, as great as shall be the difference between the divine and the human body, although their members pass under identical names, so great will also be the diversity between the divine and the human soul, notwithstanding that their sensations are designated by the same names. These sensations in the human being are rendered just as corrupt by the corruptibility of man’s substance, as in God they are rendered incorruptible by the incorruption of the divine essence.
And this, therefore, is to be deemed the likeness of God in man, that the human soul have the same emotions and sensations as God, although they are not of the same kind; differing as they do both in their conditions and their issues according to their nature. Then, again, with respect to the opposite sensations,—I mean meekness, patience, mercy, and the very parent of them all, goodness,—why do you form your opinion of the divine displays of these (from the human qualities)? For we indeed do not possess them in perfection, because it is God alone who is perfect. So also in regard to those others,—namely, anger and irritation, we are not affected by them in so happy a manner, because God alone is truly happy, by reason of His property of incorruptibility. Angry He will possibly be, but not irritated, nor dangerously tempted; He will be moved, but not subverted. All appliances He must needs use, because of all contingencies; as many sensations as there are causes: anger because of the wicked, and indignation because of the ungrateful, and jealousy because of the proud, and whatsoever else is a hinderance to the evil. So, again, mercy on account of the erring, and patience on account of the impenitent, and preeminent resources on account of the meritorious, and whatsoever is necessary to the good.
–Against Marcion II.XVI