'Affliction' in the Bible

Though the Lord may give you the bread of adversity and the water of affliction, yet your teachers won't be hidden anymore, but your eyes will see your teachers;

Behold, I have refined you, but not as silver; I have chosen you in the furnace of affliction.

In all their affliction he was afflicted, and the angel of his presence saved them: in his love and in his pity he redeemed them; and he bore them, and carried them all the days of old.