1 Corinthians 7:22

7:22 For the one who was called in the Lord as a slave is the Lord’s freedman. In the same way, the one who was called as a free person is Christ’s slave.

Ephesians 6:5-8

6:5 Slaves, obey your human masters with fear and trembling, in the sincerity of your heart as to Christ, 6:6 not like those who do their work only when someone is watching – as people-pleasers – but as slaves of Christ doing the will of God from the heart. 6:7 Obey with enthusiasm, as though serving the Lord and not people, 6:8 because you know that each person, whether slave or free, if he does something good, this will be rewarded by the Lord.

Colossians 3:22-24

3:22 Slaves, obey your earthly masters in every respect, not only when they are watching – like those who are strictly people-pleasers – but with a sincere heart, fearing the Lord. 3:23 Whatever you are doing, work at it with enthusiasm, as to the Lord and not for people, 3:24 because you know that you will receive your inheritance from the Lord as the reward. Serve the Lord Christ.

Colossians 4:1

4:1 Masters, treat your slaves with justice and fairness, because you know that you also have a master in heaven.

Titus 2:9-10

2:9 Slaves are to be subject to their own masters in everything, to do what is wanted and not talk back, 2:10 not pilfering, but showing all good faith, in order to bring credit to the teaching of God our Savior in everything.

Hebrews 12:28

12:28 So since we are receiving an unshakable kingdom, let us give thanks, and through this let us offer worship pleasing to God in devotion and awe.