13:11-14 Here are several good exhortations. God is the Author of peace and Lover of concord; he hath loved us, and is willing to be at peace with us. And let it be our constant aim so to walk, that separation from our friends may be only for a time, and that we may meet in that happy world where parting will be unknown. He wishes that they may partake all the benefits which Christ of his free grace and favour has purchased; the Father out of his free love has purposed; and the Holy Ghost applies and bestows.

11. farewell—meaning in Greek also "rejoice"; thus in bidding farewell he returns to the point with which he set out, "we are helpers of your joy" (2Co 1:24; Php 4:4).

Be perfect—Become perfect by filling up what is lacking in your Christian character (Eph 4:13).

be of good comfort—(2Co 1:6; 7:8-13; 1Th 4:18).