When the great scientist, Michael Faraday, lay dying, some journalists questioned him as to his speculations concerning the soul and death.
“Speculation?" exclaimed the dying man in astonishment. "I know nothing about speculations! I am resting on CERTAINTIES!”
Faraday then quoted from Paul's letter to Timothy: "I KNOW whom 1 have believed, and am persuaded that He is able to keep that which I have committed unto Him against that day." 2 Tim. 1:12.