1 Peter 4:13 But rejoice, inasmuch as ye are partakers of Christ's sufferings; that, when his glory shall be revealed, ye may be glad also with exceeding joy.
Suffering is not always been corrected.
We can suffer unjust sufferings because this world is unjust and so it pleases God that the just endures sufferings.
Jesus Christ was perfect, yet his suffering was complete.
His pain and lonelyness served to buy man, and also to accuse the accuser, hasatan, the devil.
Colossians 2:15 And having spoiled principalities and powers, he made a shew of them openly, triumphing over them in it.
Principalities and powers, are angelic governments, spiritual rulers of this world, the true intelligences and minds behind human governments and power systems.
The prince of the power of the air is satan, who was Lucifer, now Beelzebub, Lord of the flies.
Christ suffered on the cross to condemn the unholy angels while he was saving mankind.
Angels and man wanted to kill the Son of God, but only angels knew what they were doing. Luke 23:32.
The sufferings of the just proves his submission to God, and the unjustice of this world and its rulers, unclean angels.
1 Corinthians 6:3 Know ye not that we shall judge angels? ...