Imagination is a wonderful gift, but when we use it to conjure up our own image of God it leads us astray. It is quite common to hear people say, “I like to think of God as…” and then add whatever picture they have in mind. The problem is that our view of God is to be defined by His revelation of Himself in the Bible, and when we conceive of Him apart from that, it will be misleading at best. Anything we imagine will be inevitably less than God, and when that which is less than God is used to portray God, we are led quickly to blasphemy and idolatry.
– Alistair Begg in Pathway to Freedom