Strong G1401 δοῦλος doulos · slave

Ephesians

1. Ephesians 6:5
   Servants, be obedient to them that are your masters according to the flesh, with fear and trembling, in singleness of your heart, as unto Christ;
2. Ephesians 6:6
   Not with eyeservice, as menpleasers; but as the servants of Christ, doing the will of God from the heart;
3. Ephesians 6:8
   Knowing that whatsoever good thing any man doeth, the same shall he receive of the Lord, whether he be bond or free.