To prove that God didn't give man ALL of His Wisdom and Knowledge there are things that we don't know and won't know until He calls us Home for the Great White Throne Judgement.
When they therefore were come together, they asked of him, saying, Lord, wilt thou at this time restore again the kingdom to Israel? And he said unto them, It is not for you to know the times or the seasons, which the Father hath put in his own power.
Have you noticed that man can land on the Moon? The Moon, the Symbol of Darkness. Man is dark, flesh is dark, our hearts are dark during those secret times. But, Man has NEVER landed on the Sun, and cannot. That's why I love the Sun, man hasn't and cannot put his filthy, greedy and bloody hands on it. The Sun, the Symbol of Light. Light burns out dross. Light burns....period. The Sun is for Angels. Rev 19:17 below. (The Son is for angels. He is made up of them. The body of Christ.)
And I saw an angel standing in the sun; and he cried with a loud voice, saying to all the fowls that fly in the midst of heaven, Come and gather yourselves together unto the supper of the great God;
No man knows everything that there is to know about God. He's smarter than that. The Spirit of God is our Teacher but even Teachers don't tell everything. They tell just what you need to know.