Does Christianity recognize different types of knowledge of God?

From my reading of the following passages, it seems that Christianity does recognize at least two distinct types of knowledge of God: > [Romans 1:18-23 ESV] 18 For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth. 19 For what can be **known about God** is plain to them, because God has shown it to them. 20 For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse. 21 For although **they knew God**, they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened. 22 Claiming to be wise, they became fools, 23 and exchanged the glory of the immortal God for images resembling mortal man and birds and animals and creeping things. > [John 17:3 ESV] 3 And this is eternal life, that **they know you**, the only true God, and Jesus Christ whom you have sent. The passage from Romans 1 describes a knowledge of God that does not lead to salvation. In contrast, John 17 presents Jesus declaring that eternal life *is* the knowledge of God (and Jesus), a knowledge that clearly brings salvation. What kind of knowledge is Jesus referring to? Am I correct in concluding that the knowledge of God Jesus speaks of is fundamentally different from the knowledge described in Romans 1? Does Christianity indeed recognize different kinds of "knowledge of God"? If so, what are the various ways in which God can be *known* according to Christian teaching? Is there a type of "knowledge of God" that transcends merely acquiring information from books or making intellectual inferences from creation (as in Romans 1)? Is there a "spiritual" kind of knowledge of God, and how is this understood within Christian spirituality?