Answer: Jourden proposes to test colonel Anderson's sincerity by sending the Letter and asking him to send their wages at the time they served to him.
Explanation:
Jordan Anderson the former slave of Colonel P.H. Anderson wrote the letter to his old master as he responds to his letter to return to work for him in a sarcastic manner.
Jordan asked his former master to send him the wages at the time when he served him.
This will make him forgive and forget the old scores and will keep relying on friendship and justice for an old friend in the coming future.
He further mentioned he served him for thirty-two years with all his faith.