I do not pray for these alone, but also for those who will believe in Me through their word; that they all may be one; as You, Father, are in Me, and I in You, that they also may be one in Us: that the world may believe that You have sent Me. John 17:20, 21.
[T]he Holy Spirit, who indwells in every believer, is the true fountain of oneness.
Some of the Christians in this land of ours 200 years ago were strangely different in outward manners from their brothers and sisters of 1866; but when we talk with them through their old folios and books, we find, if we are the Lord’s people, that we are quite at home with them.
Though the manifestation may vary, yet the same Spirit of God works the same graces, the same virtues, the same excellences, and thus helps all saints to prove they are of one tribe.
I meet an Englishman anywhere in the wide world over, and I recognize in him some likeness to myself; there is some characteristic or other about him by which his nationality is betrayed; and so I meet a Christian 500 years back in the midst of Romanism and darkness, but his speech betrays him; if my soul shall traverse space in 100 years to come, although Christianity may have assumed another outward garb and fashion, I shall still recognize the Christian, I shall still detect the Galilean brogue, there will be something which will show to me that if I am an heir of heaven I am one with the past and one with the future—yes, one with all the saints of the living God.
This is a very different bond from that which men try to impose upon each other in order to create union.
They put straps around the outside, they tie us together with many knots, and we feel uneasy; but God puts a divine life inside of us, and then we wear the sacred bonds of Love with ease.
If you get the limbs of a dead man you can tie them together, and then if you send the body on a journey and the carriage jolts, a leg will slip out of its place and an arm may be dislocated.
But get a living man, and you may send him where you will, and the ligatures of life will prevent his dropping asunder.
In all the truly elect children of God who are called, and chosen, and faithful, there is a bond of divine mysterious Love running right through the whole, and they are one and must be one, the Holy Spirit being the life which unites them.
Unity in Christ, Sermon 668 – Charles Haddon Spurgeon