Go, labour on, 'tis not for naught;
Thy earthly loss is heavenly gain;
Men heed thee, love thee, praise thee, not;
The Master praises - what are men?
I came across this in the hymn book yesterday. It's not a hymn I know, but it's on the same page as one we often sing. Never read it before - but it was exactly what I needed to read yesterday, and God knew that.