Since you have purified your souls in obeying the truth through the Spirit in sincere love of the brethren, love one another fervently with a pure heart – 1Peter 1:22

(W)henever it can be said of an assembly, “the Lord is there,” unity will be created and fostered. Show me a church that quarrels, a church that is split up into cliques, a church that is divided with personal ambitions, contrary doctrines and opposing schemes, and I am sure that the Lord is not there. Where there are envyings, jealousies, suspicions, backbitings, and dislikes, I know that the Holy Dove, who hates confusion, has taken His flight. God is love, and He will only dwell where love reigns. He is the God of peace, and will not endure strife. The children of God should be knit together. It would indeed be a shameful sight should children of His family fall out, and chide, and fight. Saints who dwell with God love each other “with a pure heart, fervently.” Some professors act as if they hated each other: I may not say, “with a pure heart,” but I will say, “fervently.” Where God is present the church is edified in love, and grows up, like a building fitly framed together, to be a holy temple in the Lord. Oh, for more of this unity!…What happy times we have in preaching the word of the Lord, when God’s own presence is realized! His paths drop fatness. What joyous seasons we have frequently enjoyed at the communion table!..When we have gathered in the Lord’s presence we have sung-

“No beams of cedar or of fir
Can with thy courts on earth compare;
And here we wait, until Thy love
Raise us to nobler seats above.”

~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2182.cfm