6:5-9 The duty of servants is summed up in one word, obedience. The servants of old were generally slaves. The apostles were to teach servants and masters their duties, in doing which evils would be lessened, till slavery should be rooted out by the influence of Christianity. Servants are to reverence those over them. They are to be sincere; not pretending obedience when they mean to disobey, but serving faithfully. And they must serve their masters not only when their master's eye is upon them; but must be strict in the discharge of their duty, when he is absent and out of the way. Steady regard to the Lord Jesus Christ will make men faithful and sincere in every station, not grudgingly or by constraint, but from a principle of love to the masters and their concerns. This makes service easy to them, pleasing to their masters, and acceptable to the Lord Christ. God will reward even the meanest drudgery done from a sense of duty, and with a view to glorify him. Here is the duty of masters. Act after the same manner. Be just to servants, as you expect they should be to you; show the like good-will and concern for them, and be careful herein to approve yourselves to God. Be not tyrannical and overbearing. You have a Master to obey, and you and they are but fellow-servants in respect to Christ Jesus. If masters and servants would consider their duties to God, and the account they must shortly give to him, they would be more mindful of their duty to each other, and thus families would be more orderly and happy.
9. the same things—Mutatis mutandis. Show the same regard to God's will, and to your servants' well-being, in your relation to them, as they ought to have in their relation to you. Love regulates the duties both of servants and masters, as one and the same light attempers various colors. Equality of nature and faith is superior to distinctions of rank [Bengel]. Christianity makes all men brothers: compare Le 25:42, 43; De 15:12; Jer 34:14 as to how the Hebrews were bound to treat their brethren in service; much more ought Christians to act with love.
threatening—Greek, "the threatening" which masters commonly use. "Masters" in the Greek, is not so strong a term as "despots": it implies authority, but not absolute domination.
your Master also—The oldest manuscripts read, "the Master both of them and you": "their Master and yours." This more forcibly brings out the equality of slaves and masters in the sight of God. Seneca [Thyestes, 607], says, "Whatever an inferior dreads from you, this a superior Master threatens yourselves with: every authority here is under a higher above." As you treat your servants, so will He treat you.
neither … respect of persons—He will not, in judging, acquit thee because thou art a master, or condemn him because he is a servant (Ac 10:34; Ro 2:11; Ga 2:6; Col 3:25; 1Pe 1:17). Derived from De 10:17; 2Ch 19:7.