Jude 1:21

Keep yourselves in the love of God - By building up yourselves on your most holy faith, and praying in the Holy Ghost; for without this we shall soon lose the love of God.

Looking for the mercy of our Lord - For although they were to build themselves up, and to pray in the Holy Ghost, and keep themselves in the love of God, yet this building, praying, and keeping, cannot merit heaven; for, after all their diligence, earnestness, self-denial, watching, obedience, etc., they must look for the Mercy of the Lord Jesus Christ, to bring them to Eternal Life.

Keep yourselves in the love of God - Still adverting to their own agency. On the duty here enjoined, see the notes at John 15:9. The phrase "the love of God" may mean either God's love to us, or our love to him. The latter appears, however, to be the sense here, because it is not a subject which could be enjoined, that we should keep up "God's love to us." That is a point over which we can have no control, except so far as it may be the result of our obedience; but we may be commanded to love him, and to "keep" ourselves in that love.

Looking for the mercy of our Lord Jesus Christ - Particularly when he shall come to receive his people to himself. See the Titus 2:13 note; 2 Peter 3:12 note; 2 Timothy 4:8 note.

1:21 By these means, through his grace, keep yourselves in the love of God, and in the confident expectation of that eternal life which is purchased for you, and conferred upon you, through the mere mercy of our Lord Jesus Christ.