Separation is the outcome of separation! When a nation (i.e., Israel in the Old Testament) or an individual (i.e., a believer in the New Testament) is set apart by the Lord, that nation (or person) has become disassociated with the rest of the world. Moses made this point in Exodus 33:16 when he said, “For wherein shall it be known here that I and thy people have found grace in thy sight? is it not in that thou goest with us? so shall we be separated, I and thy people, from all the people that are upon the face of the earth.” Separation is not something accomplished through diligence but occurs naturally after a person comes to know Christ as Saviour. Christians who remain attached to the world find little satisfaction with the things of the world or less appeal for the things of God.
Joy and peace! Any sensible person would readily admit his desire for a life filled with joy. Yet, few people understand the prerequisites for regularly living that way. Previous studies mentioned several of joy’s accompanying virtues, but today’s passage provides one of joy's unifying properties. According to our passage, peace accompanies joy. Proverbs 12:20 also expresses this same relationship: “Deceit is in the heart of them that imagine evil: but to the counsellors of peace is joy.” Those who seek peace will often find joy in this life because peace and joy are entwined. Isaiah 55:12 restates this truth: “For ye shall go out with joy, and be led forth with peace.” It is important to note that men will not “go out with joy” unless they are first “led forth with peace.” Peace and joy are always inseparable. Those who have the peace of God after they are at peace with God through salvation will experience "joy unspeakable" (1 Peter 1:8).
