It is altogether an error... to suppose that God acts at one time according to one of his attributes, and at another time according to another. He acts in conformity with all of them at all times.
The Divine Nature is especially in perpetual operation by three attributes
which manifest the operation of God towards his creatures. These are his
WISDOM, WILL, and OMNIPOTENCE
We love God and live obediently because of the Spirit who lives in us, enabling us to be not just loving or kind but loving, kind, joyful, peaceful, patient, good, faithful, gentle, and self-controlled. The Spirit-filled life represents an analogy of how God is all that he is in his simple, undivided essence.God Is, 36
Again, the glory of one attribute is more seen in one work than in another: in some things there is more of His goodness, in other things more of His wisdom is seen, and in others more of His power. But in the work of redemption all His perfections and excellencies shine forth in their greatest glory.
As a simple being, God is graciousness is mercy is patience is love is goodness. He is all these things all the time with all attributes in perfect harmony. All the attributes of God must harmonize with one another in our conception of God, or else the God in our minds is not the true God.God Is, 33
He is a simple, uncompounded Being, without diverse members, and altogether like, and equal to himself, since He is wholly understanding, and wholly spirit, and wholly thought, and wholly intelligence, and wholly reason, and wholly hearing, and wholly seeing, and wholly light, and the whole source of all that is good.
The most excellent study for expanding the soul, is the science of Christ, and him crucified, and the knowledge of the Godhead in the glorious Trinity. Nothing will so enlarge the intellect, nothing so magnify the whole soul of man, as a devout, earnest, continued investigation of the great subject of the Deity.Immutability of God
On the whole it may be said that Scripture does not exalt one attribute of God at the expense of the others, but represents them as existing in perfect harmony in the Divine Being.Systematic Theology, 42
The question becomes more pressing when we note that much of the best work on classical theism and Trinitarianism of the last thirty years has been done by Roman Catholic theologians. One thinks, for example, of the work of Brian Davies, Khaled Anatolios, Lewis Ayres, Gilles Emery, Thomas Weinandy and Matthew Levering. Evangelical work in the same field has tended to be less rigorous or, worse still, to deviate from classical orthodox notions of God and Trinity. Immutability, impassibility, and doctrines such as the eternal generation of the Son have been abandoned or reduced in importance by large sections of the evangelical world.http://reformedanglicans.blogspot.ca/2015/03/17-march-2015-ad-ecttale-of-two.html