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.
Prior military personnel know the difficulties associated with functioning as a good soldier. Their training focuses on teaching them how to endure physical and emotional hardships unique to their service. They learn how to follow and obey their chain of command and frequently do things commanded without always understanding the how and why. Paul’s letter to Timothy relates the Christian life to that of a soldier. Timothy, as well as every other faithful Christian, is challenged with difficulties based solely on the fact that he is a follower of the Lord Jesus Christ. Paul instructed Timothy how to react during those times when the difficulties arise. According to Paul, Timothy was to “endure hardness, as a good soldier of Jesus Christ.” The Christian life is not supposed to be a life of ease. Fortunately, with Christ in focus, things take on a clearer focus with a notable purpose and plan. The Christian life contains “hardness” but submission to the true Commander in Chief helps the suffering seem like a light affliction (2 Corinthians 4:17). Like the good soldier, the faithful Christian needs to learn how to endure hardness in order to avoid bitterness and bewilderment during life’s battles.
