Amen. I have noticed that there is a tendency by some on the forum to believe that we cannot know God, seemingly at all. We can certainly know what He has revealed. The saints from Genesis to Revelation prayed to Him and Him alone, because they knew enough from revelation that He alone is to be worshipped and glorified.
I like a quote by A.W. Tozer addressing our understanding of God's revelation to man: If we don't/can't know what a passage of Scripture means, we can often at least know what it does not mean. I can read difficult passages of the Gospels and know that it does not mean that Mary had an ongoing role in salvation, or that she is to be venerated to a point of idolatry, or that God cannot resist her requests for whatever she wills.