Receiving from heaven

In John 3:27 (KJV), John the Baptist, responding to a line of inquiry from his followers, says

A man can receive nothing, except it be given him from heaven.

Quite a humbling thought. It reminds me of the line from Hannah's Prayer (1 Samuel 2:9, KJV),

By strength shall no man prevail.

The point is this: We cannot rely on our own physical strength or intellectual cleverness. Instead, we are to rely on God, and God alone.