All in Harmony When Christ Is the Head

Eph 1:9 …which He purposed in Himself, (10) Unto the economy of the fullness of the times, to head up all things in Christ, the things in the heavens and the things on the earth, in Him
Isa 2:4 They shall beat their swords into plowshares, and their spears into pruning hooks: nation shall not lift up sword against nation, neither shall they learn war any more.
11:6 The wolf also shall dwell with the lamb, and the leopard shall lie down with the kid; and the calf and the young lion and the fatling together.

We have seen that because of the two rebellions [Satan and Adam], everything in God’s creation is in a heap of collapse.
There is no proper headship. For example, there is no headship in the animal kingdom. Instead, the animals fight against one another. There is not even harmony in the plant kingdom. The same is true of the human life: nations fight against nations, people against people, and race against race. But the Bible clearly reveals that when the millennium [kingdom] comes, all nations will cease fighting.

Today there is a great deal of negotiation about the limitation of weapons, but in the millennium there will be no weapons at all (Isaiah 2:4). Regarding the situation in the animal kingdom during the millennium, Isaiah 11:6 indicates that all the animals will be headed up and live together peaceably. Furthermore, Isaiah 55:12 says, “All the trees of the field shall clap their hands,” singing together in harmony in praise to God. Psalm 96:12 and 13 declare, “Let the field be joyful, and all that is therein: then shall all the trees of the wood rejoice before the Lord.” This is a description of the situation when everything is headed up in Christ. When this takes place, there will be absolute peace and harmony in the human kingdom, the animal kingdom, and the plant kingdom because everything will have been fully rescued out of the heap of collapse.