I think the key to passion, to zeal, is gratitude. Or to put it another way, the fuel to motivate is gratitude.
Ray ComfortI do admit to mocking atheists, because mockery is a legitimate form of debate according to my rule Book. God Himself mocks evil men who refuse His moral government (see Proverbs 1:26-27).
Ray ComfortIt is amazing that we hesitate to talk about the wrath of God, for fear of making sinners feel fearful. The fear they feel this side of the grave will be nothing compared to the fear they feel when they stand before Almighty God.
Ray Comfort