Scripture plainly reveals that God repeatedly calls for His people to separate from the world. This separation extends to every aspect of life, especially including the marriage bond. Why? Because God knows the very real danger that unbelievers pose to believers by drawing them away from Him (Deuteronomy 7:3-4; Judges 3:6-7; 1 Kings 11:2). This is why God specifically instructed His people in both the Old and New Testament to marry among themselves (Jew with Jew and Christian with Christian). The nation of Israel was forbidden to yoke up with the surrounding nations because Israel would adopt heathen practices and the worship of false gods (Exodus 34:15-16). Though God’s commands for the New Testament believer are often different from His plan for the Jew, in this aspect they remain constant and unchangeable.
No believer should knowingly marry an unbeliever (2 Corinthians 6:14). Additionally, the unmarried should look for other strengths and weaknesses in a prospective spouse before agreeing to marriage. Oftentimes, these strengths and weaknesses can be seen by interaction with the other’s parents. Isaac lied about Rebekah (Genesis 26:6-7) just as his father Abraham lied about Sarah (Genesis 12:10-13; Genesis 20:1-2). Solomon’s weakness for women (1 Kings 11:1) was first witnessed in his father David (2 Samuel 11:1-4). Rachel learned deception (Genesis 31:32-35) by watching her father act deceptively (Genesis 29:25). A careful observation of parents can reveal prospective problems in a future spouse.
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 scriptural under a variety of different scenarios. Most commonly, believers understand that they are to separate from unbelievers (2 Corinthians 6:14). This does not imply that believers should not witness to the lost but that there should be no “fellowship” between the two. The Bible also indicates that there are times in which one believer should separate from another believer. Most often, this happens because of the propagation of false doctrine (Romans 16:17-18; 2 Thessalonians 3:6) or immoral practices (1 Corinthians 5:11). However, there may also be instances when believers separate for the purpose of furthering the work of God (Galatians 2:6-9).
