I'm preaching on Sunday night from 1 Corinthians 5 on the topic of church discipline. I think this song fits so well (though not intended to be about church discipline). Cowper wrote:
Ye fearful saints, fresh courage take,
The clouds ye so much dread
are big with mercy, and shall break
In blessings on your head.
Judge not the Lord by feeble sense,
But trust him for his grace;
Behind a frowning providence,
He hides a smiling face.
Jeremy Riddle, "God Moves in Mysterious Ways"