Definition and Overview:
Internal strife and division refer to conflicts, disagreements, and separations that occur within a group, community, or nation. In the biblical context, these terms often describe discord among the people of God, whether within families, tribes, or the broader community of Israel and the early Church. Such divisions can arise from various sources, including sin, pride, false teachings, and differing interpretations of God's will.

Biblical Instances:

1. Cain and Abel (Genesis 4:1-16): The first recorded instance of internal strife in the Bible is the conflict between Cain and Abel, the sons of Adam and Eve. Cain's jealousy and anger towards Abel, whose offering was favored by God, led to the first murder. This account highlights how sin can lead to division and violence within a family.

2. Joseph and His Brothers (Genesis 37): Joseph's brothers were envious of him because of their father's favoritism and Joseph's dreams, which foretold his future prominence. Their jealousy led them to sell Joseph into slavery, causing a significant rift in the family. This narrative illustrates how envy and favoritism can lead to severe familial division.

3. The Division of Israel (1 Kings 12): After Solomon's reign, the kingdom of Israel was divided into two: the northern kingdom of Israel and the southern kingdom of Judah. This division was a result of political strife, heavy taxation, and Rehoboam's harsh leadership. It serves as a cautionary tale about the consequences of poor leadership and ignoring wise counsel.

4. Paul and Barnabas (Acts 15:36-41): Even in the early Church, internal strife occurred, as seen in the disagreement between Paul and Barnabas over John Mark. Their sharp contention led to their separation in ministry. This incident underscores that even devoted believers can experience conflict, yet God can use such situations for His purposes.

Causes of Internal Strife:

1. Sin and Human Nature: The Bible teaches that the root of internal strife is often sin, which distorts human relationships. James 4:1-2 states, "What causes conflicts and quarrels among you? Don’t they come from the passions at war within you? You crave what you do not have; you kill and covet, but are unable to obtain it."

2. Pride and Selfish Ambition: Pride and the desire for personal gain can lead to division. Proverbs 13:10 notes, "Arrogance leads only to strife, but wisdom is with the well-advised."

3. False Teachings and Doctrinal Disputes: The New Testament warns against false teachers who cause divisions. Romans 16:17 advises, "Now I urge you, brothers, to watch out for those who create divisions and obstacles that are contrary to the teaching you have learned. Turn away from them."

4. Lack of Love and Forgiveness: A failure to love and forgive one another can result in ongoing conflict. Colossians 3:13-14 encourages believers to "Bear with one another and forgive any complaint you may have against someone else. Forgive as the Lord forgave you. And over all these virtues put on love, which is the bond of perfect unity."

Consequences of Internal Strife:

1. Disunity and Weakness: Internal strife weakens the community, making it vulnerable to external threats. Jesus warned, "If a kingdom is divided against itself, it cannot stand" (Mark 3:24).

2. Hindrance to God's Work: Division can impede the mission of the Church. Jesus prayed for unity among His followers, knowing that their oneness would testify to the world about His divine mission (John 17:21).

3. Loss of Witness: When believers are embroiled in conflict, it can damage their testimony to non-believers. Jesus taught that love among His disciples would be a sign to the world (John 13:35).

Resolution and Prevention:

1. Pursuing Peace: Believers are called to be peacemakers. Romans 12:18 instructs, "If it is possible on your part, live at peace with everyone."

2. Seeking Reconciliation: The Bible emphasizes the importance of reconciliation. Matthew 5:23-24 advises believers to reconcile with others before offering their gifts at the altar.

3. Promoting Unity in Christ: Ephesians 4:3 encourages believers to "make every effort to keep the unity of the Spirit through the bond of peace."

4. Adhering to Sound Doctrine: Holding fast to biblical truth helps prevent divisions caused by false teachings. Titus 1:9 emphasizes the need for sound doctrine to encourage others and refute those who oppose it.

Internal strife and division are recurring themes in the Bible, reflecting the ongoing struggle between human sinfulness and God's call for unity and peace among His people. Through Scripture, believers are equipped with principles to address and overcome such challenges, fostering a community that reflects God's love and truth.