Knowing that whatsoever good thing any man doeth, the same shall he receive of the Lord, whether he be bond or free. Whatsoever good thing any man doeth - Though your masters should fail to give you the due reward of your fidelity and labor, yet, as ye have done your work as unto the Lord, he will take care to give you the proper recompense.
Whether he be bond - A slave, bought with money;
Or free - A person who has hired himself of his own free accord.