'Master' in the Bible

Food of all kinds is meant for the stomach, and the stomach is meant for food, and God will cause both of them to perish. Yet the body does not exist for the purpose of fornication, but for the Master's service, and the Master exists for the body;

and as God by His power raised the Master to life, so He will also raise us up.

But he who is in union with the Master is one with Him in spirit.

A married woman is not mistress of her own person: her husband has certain rights. In the same way a married man is not master of his own person: his wife has certain rights.