I Cor. 9:16 For though I preach the gospel, I have nothing to glory of: for necessity is laid upon me; yea, woe is unto me, if I preach not the gospel!
Col. 3:23 And whatsoever ye do, do it heartily, as to the Lord…
Romans 13:11 And that, knowing the time, that now it is high time to awake out of sleep: for now is our salvation nearer than when we believed.
Psalm 126:5-6 They that sow in tears shall reap in joy.  He that goeth forth and weepeth, bearing precious seed, shall doubtless come again with rejoicing, bringing his sheaves with him.