With all lowliness and meekness, with longsuffering, forbearing one another in love. Ephesians 4:2.
God is love. The love of the Father and the Son is an attribute of every believer. The Word of God is the channel through which divine love is communicated to man. God’s truth is the medium by which the intellect is reached. The Holy Spirit is given to the human agent who works in cooperation with divine agencies. It transforms mind and character, enabling man to endure as seeing Him who is invisible. Perfect love can be enjoyed only through the belief of the truth and the reception of the Holy Spirit...
Christ prayed that His disciples might realize the importance of the love that He expressed by giving His life for the world. He desired them to understand something in regard to His infinite sacrifice. If they had more fully understood His self-sacrificing love, they would never have engaged in alienation and strife.
I urge all who claim to believe present truth to practice that truth. If they do this, they will have a stronger and more powerful influence for good. The world will see that the love expressed by believers is the central and controlling principle of Christ’s followers. Christlike love blends heart with heart. The truth draws men together. It brings into harmony and unity all who have an earnest, living faith in the Saviour. Christ designs those who believe in Him to develop and become strong by association with one another. All who work unselfishly in the Master’s service bear credentials to the world that God has sent His Son to this earth.
Although a company of Christians united in church capacity have not all the same talents, yet it is the duty of everyone to work. Talents differ, but to every man is given his work. All are dependent upon Christ in God. He is the glorious Head of all grades and classes of people associated through faith in the Word of God. Bound together by a common belief in heavenly principles, they are all dependent on Him who is the Author and Finisher of their faith. He has created the principles that produce universal oneness, universal love. His followers should meditate upon His love. They should not stop short of reaching the standard set before them. If the principles of Christianity are lived, they will produce universal harmony and perfect peace. When the heart is imbued with the Spirit of Christ, there is no quarreling, no seeking for the supremacy, no striving to be reigning lords.—Manuscript 46, March 31, 1902, “Unity a Sign of Discipleship.”
Reference: E.G. White, "The Upward Look," p. 104