Colossians 3:22-25 NASB
22 Slaves, in all things obey those who are your masters on earth, not with external service, as those who merely please men, but with sincerity of heart, fearing the Lord. 23 Whatever you do, do your work heartily, as for the Lord rather than for men, 24 knowing that from the Lord you will receive the reward of the inheritance. It is the Lord Christ whom you serve. 25 For he who does wrong will receive the consequences of the wrong which he has done, and that without partiality.