For you know that whatever good each one will do, the same will he receive from the Lord, whether he is servant or free
Other versions
King James Version
Knowing that whatsoever good thing any man doeth, the same shall he receive of the Lord, whether he be bond or free.English Standard Version
knowing that whatever good anyone does, this he will receive back from the Lord, whether he is a slave or free.New International Version
because you know that the Lord will reward everyone for whatever good he does, whether he is slave or free.