Acts 2:18 Yes, and on my servants and on my handmaidens in those days, I will pour out my Spirit, and they will prophesy. (See NAS)
Titus 2:9 Exhort servants to be in subjection to their own masters, and to be well-pleasing in all things; not contradicting; (See NAS)
1 Peter 2:16 Be free men, and yet do not make your freedom an excuse for base conduct, but be God's bondservants. (See NAS)