A 3 1/2-minute encouraging (or alarming) video: "It's Friday, But Sunday's a Comin'"
(Apparently, that video was removed, so try this one or this one. Or google the title to find the sermon clip by preacher S.M. Lockridge.)
For believers: "Hang in there, it's almost Sunday!"
For non-believers: "Take warning: It's almost Sunday!" (See this post and this post)