I came across this quote in Herman Bavinck’s Reformed Dogmatics and quite frankly, I think (?) he missed the mark here. To be honest, I do like everything that I have read in Bavinck up until now. But this one just rubbed me the wrong way. Commenting on God’s communicable attributes in volume 2 of RD, page 192:
In addition God is conscious of and knows all that exists outside His being. Scripture nowhere even hints that anything could be unknown to Him. True, the manner in which He obtains knowledge is sometimes stated in striking anthropomorphic language (…) but He nevertheless knows everything.
Two questions in response to the bold parts of the quote:
1. Can anything exist outside God’s being?
2. If God obtains knowledge, then what greater source of knowledge does God turn to in order to gain a bit of knowledge that He did not already have? Does He know everything or does He not?