“As the sun is not blown out by the tempest, nor the moon quenched by the dew of night, so is not the gospel destroyed by the sophistries of perverse minds. Wherefore let us comfort one another with these words: “The word of God is not bound.” It will be preached till doomsday.” —C.H. Spurgeon
There are plenty of subjects to preach to our world, but only one can save and will survive the test of eternity. All else is ashes.
Fear not, and preach.