Oliphint gives us a great work on what it means for God to be with us. The book deals with the attributes of God, not so much in the traditional way they are studied, but in examining them with their relation to God's covenant condescension to man.
Oliphint writes that God's "voluntary condescension" was necessary for "for us to have anything to do with God whatsoever." It is this "stooping" that is the source of so much confusion--particularly regarding heresies that attempt to explain this condescension by various explanations that either undermine the divinity of Christ, the foreknowledge of the Father, the sovereignty of God, and so on.
He argues that, through his study of Christology, that "given the full deity of the second person of the Trinity, and given his status as the One through whom everything was made, and given his triune commission to be the One who reveals God, it seems our understanding of “God revealed” should find its focus in God’s condescension by way of the Logos, culminating in the “Logos-in-the-flesh,” God with us, Emmanuel, the Lord Jesus Christ."
In other words, if we are to understand God's covenant condescension through the work of Christ, all of God's interactions with man are mediated through Christ--even in the Old Testament.
With all this in mind, Oliphint then approaches some of the difficult questions--such as, if God is all-knowing,"why does God say of himself, 'Now I know . . .'?" He shows us how others have answered the question--those ranging from orthodox to heretical. Ultimately all answers that do not properly understand God's covenant condescension fail to fully satisfy.
This is the crux of the book, and it is really helpful, as it fully answers our questions on the matter, without compromising God's attributes. Oliphint writes:
"Once God condescends, we should recognize that, in taking to himself covenantal properties, he takes to himself as well the kind of knowledge (and will, to be discussed later) that accrues to those properties. Or, to put it another way, one of the covenantal properties that he takes to himself is the development of knowledge that is conducive to his interaction with his creation generally, and specifically with his people."
In short, God condescends to a human level in every way. He not only speaks in a human way, but he acts in a human way. He relates to us in a way that is self-limiting. He writes:
"...once God determines to condescend to his creation, that determination itself includes limiting characteristics and properties that God assumes. Because God determines to do this, all limiting characteristics and properties are self-limiting, first of all. There is nothing outside of God that initially limits him; nor is there anything that ever limits his essential character. But, just to use one example, when God determines to defend himself as the Divine Warrior, he thereby determines to limit his own activity in such a way as to conform to various constraints and contexts in creation. He does not have to do this; he freely chooses to do it, and there is nothing in God that makes this determination necessary, as we have already seen. But he does do it, and in “fighting the good fight” alongside his people, as the commander of the Lord’s army (Josh. 5:14; cf. Joel 2:11; Rev. 19:13–14), he assumes created properties and determines not to fight according to the application of his all-powerful character."
But perhaps he puts it best in discussing God's testing Abraham. He writes:
"God could have truthfully said to Abraham, “I have known from eternity both what you would do, in every detail, and that I would provide a substitute for you. I put you to this test so that your faith would be strengthened and so that you would know, by way of experience, just how deeply committed to me you are.” This, and many other similar statements, God could have genuinely said to Abraham. The point of the passage, however, is not that God knows the end from the beginning in any and every situation or in Abraham’s life, true as that is. The point of the passage is that God’s covenant with his people, and with Abraham as the father of his people, is one that really and truly, not simply metaphorically, involves God in the process. It is a commitment in which he has come down, covenantally “hiding” those essential properties that remain his, in order to bind himself to us and to our lives in such a way that his interaction with us involves a real, ongoing, empathetic relationship. He really does identify with us, and he moves with us in history, “learning” and listening, in order to maintain and manage the covenant relationship that he has sovereignly and unilaterally established, the details of which he has eternally and immutably decreed."
The book is a challenging read for the layman, but it is a really important topic, as if you get this wrong, it is easy to fall into heresy. This is a great book, though it is probably too difficult a read for most people. But this is really important reading for pastors and teachers.