The most glorious discoveries and Eternal certainty (most recent)
The extent of our knowledge of God depends on our seeking after Him:
Lectures on Faith, Lecture Second
34 The reason why we have been thus particular on this part of our subject is that this class may see by what means it was that God became an object of faith among men after the fall, and what it was that stirred up the faith of multitudes to feel after him, to search after a knowledge of his character, perfections and attributes until they became extensively acquainted with him; and not only commune with him and behold his glory, but be partakers of his power and stand in his presence.
56 Let us here observe that after any portion of the human family are made acquainted with the important fact that there is a God who has created and does uphold all things, the extent of their knowledge, respecting his character and glory, will depend upon their diligence and faithfulness in seeking after him, until like Enoch, the brother of Jared, and Moses, they shall obtain faith in God and power with him to behold him face to face.
57 We have now clearly set forth how it is, and how it was, that God became an object of faith for rational beings, and also upon what foundation the testimony was based, which excited the enquiry and diligent search of the ancient saints to seek after and obtain a knowledge of the glory of God. And we have seen that it was human testimony, and human testimony only, that excited this enquiry in the first instance in their minds — it was the credence they gave to the testimonyof their fathers — this testimony having aroused their minds to enquire after the knowledge of God, the enquiry frequently terminated, indeed, always terminated, when rightly pursued, in the most glorious discoveries and Eternal certainty.