John 9:15, 21, 26
So the Pharisees also asked him how he had received his sight. The man answered, "He put mud on my eyes, and I washed, and now I can see." . . .

John 3:9
"How can this be?" Nicodemus asked.

Ecclesiastes 11:5
As you do not know the path of the wind, or how the bones are formed in a mother's womb, so you cannot understand the work of God, the Maker of all things.

Mark 4:27
Night and day he sleeps and wakes, and the seed sprouts and grows, though he knows not how.

1 Corinthians 15:35
But someone will ask, "How are the dead raised? With what kind of body will they come?"