In the context of Ephesians 4, unity is a central theme that flows from the spiritual foundation established by the Father and the Son through the Holy Spirit. This unity is not a mere social camaraderie or a forced alliance against a common enemy, but a profound spiritual connection that emanates from God to us, and from us to each other, returning to Him. It is rooted in a shared belief in truth and cannot be achieved through external corporate mergers or political unions. Instead, it must be generated from within, among those who hold the same beliefs, attitudes, and policies, flowing naturally from the inside out. Paul emphasizes that this unity of the Spirit already exists, as seen in Ephesians 4:3, where he instructs to keep or guard it, not to create it. Even in a scattered state, we can remain unified through faith, guided by the Holy Spirit rather than a corporate body. This unity is not dependent on numbers or organizational structure, for God knows where His people are, and the same spiritual growth can occur in various groups. The Body of Christ remains whole, undivided, though composed of individuals who may be spiritually strong or weak based on their personal yielding to God. Our responsibility is to guard this unity by maintaining our individual relationship with God, striving to be a healthy part of the Body. We cannot force unity externally, but we can work on ourselves, ensuring that our conduct and beliefs align with the calling we have received. Sin, which divides and separates, was bridged by Jesus Christ, allowing us access to God and the potential for reconciliation. Each of us must contribute to maintaining this reconciliation by living a life worthy of our invitation, becoming holy, and thus preserving the unity that God has already established.

Unity is a profound challenge in a world marked by pervasive disunity, evident in societal divisions, political strife, and even within the church. Jesus Christ, in His prayer recorded in John 17, repeatedly emphasized the importance of oneness, requesting it five times, highlighting its critical nature and the difficulty in achieving it. He prayed that His followers may be one, as He and the Father are one, so that the world may believe in His divine mission. The call to unity begins at the very foundation of God's plan, seen in the creation of marriage in Genesis 2, where man and woman are to become one flesh, implying a comprehensive unity in all aspects of life. This principle extends to the church, God's Family, where spiritual oneness is sought among diverse peoples, transcending nationalities and cultures. Scripture urges believers to strive for unity, as seen in Ephesians 4:1-6, which calls for walking worthy of one's calling with humility, meekness, and longsuffering, endeavoring to keep the unity of the Spirit in the bond of peace. Similarly, Philippians 2:1-2 encourages being likeminded, having the same love, and being of one accord. Unity does not happen by chance; it must be actively created through cooperation and shared purpose. Guarding unity involves recognizing factors that promote or hinder it. Similarity, commonality, and cooperation tend to unify, while difference, variation, and rivalry often divide. The intention to unify or divide is not always necessary for the outcome to occur, and the effects may not be immediately apparent. Negative qualities such as anger, jealousy, and pride separate, whereas positive qualities like humility, kindness, and patience foster unity. Sin invariably separates, as illustrated in Genesis 3 with Adam and Eve's disobedience, which divided them from God and life itself. Every sin ultimately divides, even if temporarily masked by apparent unity in wrongdoing, as seen in conspiracies doomed to failure. Guarding against sin is essential to maintaining unity, as its leavening effect impacts beyond the immediate participants. God's calling and truth both separate and unite, drawing individuals closer to Him while separating them from the world, as noted in John 6:44 and Revelation 18:4. Obedience to God unifies believers with Him but may separate them from worldly associations or even family, depending on others' reactions to this calling, as highlighted in Luke 14:26. Truth, whether God's or otherwise, can divide or unify based on how it is received. Unity with God precedes unity with others and is the foundation for true oneness within the church. Leadership, exemplified by Jesus Christ and the Father, is pivotal in producing unity. They demonstrate a sacrificial approach, giving and loving even while sinners, equipping believers with gifts to foster unity. Each individual must take responsibility to lead in their sphere of influence, following Christ's example, seeking God's Kingdom first, and submitting to His truth to achieve the unity acceptable for entrance into His Kingdom.

In the days of Judges, as recorded in Judges 21:25, there was no king in Israel, and everyone did what was right in their own eyes, leading to division and chaos among the people. This starkly contrasts with the call to unity under God's sovereign authority, as emphasized in Psalm 47, where God is proclaimed as the great King over all the earth, reigning over the nations from His holy throne. The failure to recognize and honor the true King results in disunity, as seen when Israel strayed from God's ways, falling into depravity and suffering. True unity and peace come from living according to God's law and way of life, acknowledging Him as the eternal King. As we prepare for the Passover, we must recommit ourselves to this unity with the Father, the Son, and one another, understanding the peace offering as a central aspect of this memorial. The Passover meal, shared with the King of Peace, symbolizes this peaceful unity, as prefigured in Genesis 14 when Melchizedek, king of Salem and priest of God Most High, refreshed Abram with bread and wine, blessing him under God's authority. Our battle is not against flesh and blood but against spiritual forces, as noted in Ephesians 6:10-12, requiring us to guard our unity with the Father and the Son. This unity is further affirmed in John 18:33-38, where Jesus Christ declares His kingdom is not of this world, affirming His role as the King of Peace born to bear witness to the truth. As we approach the Passover, we must focus on this shared meal with Him, ensuring we maintain the unity and peace He provides.