And they said every one to his fellow, Come, and let us cast lots, that we may know for whose cause this evil is upon us. So they cast lots, and the lot fell upon Jonah. Come, and let us cast lots - This was a very ancient mode of endeavoring to find out the mind of Divine Providence; and in this case it proves that they supposed the storm to have arisen on account of some hidden crime of some person aboard.
A philosopher being at sea in a violent storm. when the crew began to call earnestly to the gods for safety, he said, "Be silent, and cease your prayers; for should the gods know that you are here, we shall all be lost."
The lot fell upon Jonah - In this case God directed the lot.