What causes disunity?
John 13:34-35 (NKJV) "A new commandment I give to you, that you love one another; as I have loved you, that you also love one another. 35 By this all will know that you are My disciples, if you have love for one another.”
1 John 1:6-7 (NKJV) "If we say that we have fellowship with Him, and walk in darkness, we lie and do not practice the truth. 7 But if we walk in the light as He is in the light, we have fellowship with one another, and the blood of Jesus Christ His Son cleanses us from all sin."
Ephesians 5:1-2 (NKJV) "Therefore be imitators of God as dear children. 2 And walk in love, as Christ also has loved us and given Himself for us, an offering and a sacrifice to God for a sweet-smelling aroma."
"What is it that causes dissension and discord? It is the result of walking apart from Christ. At a distance from Him, we lose our love for Him, and grow cold toward His followers. The farther the beams of light recede from their center, the wider separated they become. Each believer is as a beam of light from Christ the Sun of righteousness. The more closely we walk with Christ, the center of all love and light, the greater will be our affection for His light-bearers. When the saints are drawn close to Christ, they must of necessity be drawn close to each other, for the sanctifying grace of Christ will bind their hearts together. You cannot love God and yet fail to love your brethren." – {1888 1048.3}
Troubles exist between brethren in the church because they fail to understand what constitutes true Christian charity, brotherly affection, and Christlike love. Self-love and self-esteem lead professed Christians to measure themselves by themselves. They take for granted that all their surmisings and suspicions of others are correct. But it is because of suspicions and judging of one another that there is discord, strife, and an unhealthy condition of the church. { 1888 1087.1 }