If Christians kindled by the grace of God, unite they will quicken and enliven each other; but if they separate . . . they soon grow cool or tepid.
George Whitefield (1714 – 1770)
Earth affords not a more impressive, affecting, and solemn sight, than that of a whole congregation uniting in acts of prayer and praise to the great Lord of all.
Edward Bickersteth, A Treatise on Prayer
If you go back through the long history of the Church, you will find that it has often counted most, and has been most used by God, when there have been just a handful of people who were agreed in spirit and in doctrine. God took hold of them and used them and did mighty things through them. But when there was only one Church in the whole of western Europe, what did she lead to? The Dark Ages. And yet it seems to me that this great lesson of history is being entirely forgotten and ignored at this present time. I say these things not because I am animated by any controversial spirit, but because I have a zeal for the truth as I find it in the Scriptures, and regard it as tragic to note the way in which Scripture is being twisted and perverted in the interests of a unity which is not a unity.
D. Martyn Lloyd-Jones, Great Doctrines of the Bible – The Church
HT: Reformed Quotes
As a matter of fact, we have a greater possibility of showing what Jesus is speaking about here, in the midst of our differences, than we do if we are not differing. Obviously we ought not to go out looking for differences among Christians; there are enough without looking for more. But even so, it is in the midst of a difference that we have our golden opportunity. When everything is going well and we are all standing around in a nice little circle, there is not much to be seen by the world. But when we come to the place where there is a real difference, and we exhibit uncompromised principles but at the same time observable love, then there is something that the world can see, something they can use to judge that these really are Christians and that Jesus has indeed been sent by the Father.
Francis Schaeffer (1912-1984)