George MacDonald (10 December 1824 – 18 September 1905 / Huntly, Aberdeenshire, Scotland)

Trust him in the common light;
Trust him in the awesome night;

Trust him when the earth doth quake:
Trust him when thy heart doth ache;

Trust him when thy brain doth reel
And thy friend turns on his heel;

Trust him when the way is rough,
Cry not yet,
It is enough
!

But obey with true endeavour,
Else the salt hath lost his savour.