“...but we speak God's wisdom in a mystery, the hidden wisdom, which God predestined before the ages to our glory; the wisdom which none of the rulers of this age has understood; for if they had understood it, they would not have crucified the Lord of glory.” 1 Corinthians 2:7-8
“Now we have received, not the spirit of the world, but the Spirit who is from God, that we might know the things freely given to us by God, which things we also speak, not in words taught by human wisdom, but in those taught by the Spirit, combining spiritual thoughts with spiritual words. But a natural man does not accept the things of the Spirit of God; for they are foolishness to him, and he cannot understand them, because they are spiritually appraised.” 1 Corinthians 2:12-14
The natural man does not have a clue about solving the mystery of Christ. His attempts to figure out God’s mind by using his own reason are futile. Use your imagination for a moment, if you will:
Imagine a family of mice who lived all their lives in a large piano. To them in their piano-world came the music of the instrument, filling all the dark spaces with sound and harmony. At first the mice were impressed by it. They drew comfort and wonder from the thought that there was Someone who made the music - though invisible to them - above, yet close to them. They loved to think of the Great Player whom they could not see.
Then one day a daring mouse climbed up part of the piano and returned very thoughtful. He had found out how music was made. Wires were the secret: tightly stretched wires of graduated lengths, which trembled and vibrated. They must revise all their old beliefs: none but the most conservative could any longer believe in the Unseen Player.
Later, another explorer carried the explanation further. Hammers were now the secret - numbers of hammers, dancing and leaping on the wires. This was a more complicated theory, but it all went to show that they lived in a purely mechanical and mathematical world. The Unseen Player came to be thought of as a myth.
But the pianist continued to play.
Think about it -
The exact age of the human race is unknown, but it certainly is old enough to know better!