What does the Bible mean when it says to “have no fellowship with the unfruitful works of darkness”? Does this mean that believers should never speak to those who do not know Christ as Saviour? The key involves understanding Bible terminology. The word fellowship is a two part compound word. A simple Bible study of the root word fellow indicates that it involves two people working as one (John 11:16; 3 John 8); therefore fellowship involves two people being closely associated. The command for believers to avoid close association with unbelievers is further confirmed when the Bible says believers and unbelievers should not be “unequally yoked together” (2 Corinthians 6:14). When two people are yoked together, they are united in work; but the saved should never unite with the lost in such matters. More importantly, believers must never yoke up with unbelievers in God’s work (Ezra 4:3).
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.
Paul and Barnabas functioned similar to pioneer church planters who travel into unreached areas with the gospel. As they traveled, they faithfully preached the gospel and started churches with the goal of returning later to strengthen the believers. As Paul and Barnabas were planning their return to these areas, a conflict arose between them concerning who would accompany them on their journey. Barnabas desired to take a young man named John Mark, but Paul adamantly refused. Mark had accompanied them on the first trip, but departed from them and “went not with them to the work.” Paul felt as though he could no longer depend upon John Mark because of his earlier failure. The contention was so strong that Paul and Barnabas parted company and went their own separate ways. This is a sad narrative should it end here; however, there is much more to the story. Praise God that Paul later remarked of John Mark that “he is profitable to me for the ministry” (2 Timothy 4:11).