One of the most comforting promises in all of Scripture is that God does not waste suffering. For those who love God and are called according to His purpose, every trial, every hardship, every painful circumstance is being worked together by a sovereign God for an ultimate good. This does not mean every event is good in itself, but that God weaves even the darkest threads into a tapestry of His purpose.
This promise is not for everyone universally — it is specifically for those who love God and are walking in His calling. It requires faith to trust that the God who sees the end from the beginning is working even when we cannot see it.