It is commendable if a man suffer because who want to do God's will

1 Peter 2:18-25
It is commendable if a man bears up under the pain of unjust suffering because he is conscious of God.
To this you were called, because Christ suffered for you, leaving you an example, that suffered for you, leaving you an example, that you should follow in his steps.
He himself bore our sins in his body on the tree, so that we might die to sins and live for righteousness; by his wounds you have been healed.
commendable: worthy of praise
Slaves, harshly treated, find their model in Christ, who endured undeserved suffering without threat or argument in his own defence.
As God, 'the righteous Judge' brought blessing for all from the suffering of Jesus, so he will bless those who suffer because they want to do his will.
Why?
Most slaves and staff in company, there are treated harshly, bear pain or suffer unrighteousness. If we are doing good as God told us. It is worthy of praise.
God is the master of the righteous Judge, God blesses those who do His will.
Like Christ endured undeserved suffering without threat, what we bearing is under our capability.
How?
Do not complain, do not make argument, follow what Christ has told us. God will judge for us.