AW Tozer opens chapter 10 of his book, Delighted in God, by saying this,
The challenge before me is to describe that which cannot be described. When describing God, who is unlimited in every aspect, we are challenged by our human limitations. God makes the greatest demand on our intelligence and imagination and powers of reason, requiring us to pocture a mode of being that we are not familiar with, a mode of being wholly beyond ourselves, a mode of being unlike anything we have ever known.
Most Christians try to dumb down God, to make him more like us. Most sermons or teaching series do much the same. Maybe we are denuding God of his reality, maybe such words at worst might be considered heresy?