When Jesus was accused of casting out demons by the power of demons He offer this defense:
So He called them to Himself and said to them in parables: “How can Satan cast out Satan? If a kingdom is divided against itself, that kingdom cannot stand. And if a house is divided against itself, that house cannot stand. And if Satan has risen up against himself, and is divided, he cannot stand, but has an end. (Mark 3:23-26)
There is a reason for the disunity we see on this earth. When faced with an enemy who is evil and intends to do harm, steps must be taken to divide him. This is a precept of warfare. Regrettably, humankind has shown a propensity to follow evil. God found it necessary to thwart the plans of those who would not follow Him.
Now the whole earth had one language and the same words. And as they migrated from the east, they came upon a plain in the land of Shinar and settled there. And they said to one another, “Come, let us make bricks, and burn them thoroughly.” And they had brick for stone, and bitumen for mortar. Then they said, “Come, let us build ourselves a city, and a tower with its top in the heavens, and let us make a name for ourselves; otherwise we shall be scattered abroad upon the face of the whole earth.” The LORD came down to see the city and the tower, which mortals had built. And the LORD said, “Look, they are one people, and they have all one language; and this is only the beginning of what they will do; nothing that they propose to do will now be impossible for them. Come, let us go down, and confuse their language there, so that they will not understand one another’s speech.” So the LORD scattered them abroad from there over the face of all the earth, and they left off building the city. Therefore it was called Babel, because there the LORD confused the language of all the earth; and from there the LORD scattered them abroad over the face of all the earth. (Genesis 11:1-9)
On the Day of Pentecost, God made it possible for people to comprehend the various languages which once separated them.
When the day of Pentecost had come, the disciples were all together in one place. And suddenly from heaven there came a sound like the rush of a violent wind, and it filled the entire house where they were sitting. Divided tongues, as of fire, appeared among them, and a tongue rested on each of them. All of them were filled with the Holy Spirit and began to speak in other languages, as the Spirit gave them ability. (Acts 2:1-4)
God did something extraordinary. He placed His very nature into the heart of those who sought Him. Jesus told His disciples that this event was coming:
“If you love me, you will keep my commandments. And I will ask the Father, and he will give you another Advocate, to be with you forever. This is the Spirit of truth, whom the world cannot receive, because it neither sees him nor knows him. You know him, because he abides with you, and he will be in you.” (John 14:23-24)
Unity can only be brought about in those who are willing to be led by the Spirit of Unity. Are we now ready to be led God’s Spirit? If so, we have a great promise from God.
All who are led by the Spirit of God are children of God. For you did not receive a spirit of slavery to fall back into fear, but you have received a spirit of adoption. When we cry, “Abba! Father!” it is that very Spirit bearing witness with our spirit that we are children of God, and if children, then heirs, heirs of God and joint heirs with Christ– if, in fact, we suffer with him so that we may also be glorified with him. (Romans 8:14-17)