It's interesting to note that Isaiah says the serpent is still eating dust.
(Isa 65:17 For behold, I create new heavens and a new earth; and the former things will not be remembered or come to mind.)
(Isa 65:25 “The wolf and the lamb will graze together, and the lion will eat straw like the ox; and dust will be the serpent’s food. They will do no evil or harm in all My holy mountain,” says the LORD.)
(Gen 3:14 The LORD God said to the serpent. . . On your belly you will go, And dust you will eat all the days of your life)
(Isa 65:17 For behold, I create new heavens and a new earth; and the former things will not be remembered or come to mind.)
(Isa 65:25 “The wolf and the lamb will graze together, and the lion will eat straw like the ox; and dust will be the serpent’s food. They will do no evil or harm in all My holy mountain,” says the LORD.)
(Gen 3:14 The LORD God said to the serpent. . . On your belly you will go, And dust you will eat all the days of your life)
When there is peace on earth, and people will not fight with each other, and animals will not fight with each other, and people and animals will not fear each other.
Which God will fight the world that rebelled against Him, and defeat them, and save Israel, and Jesus and the saints will rule over the heathen that God spared at the battle of Armageddon.
When the LORD is King over all the earth, and in that day there shall be one LORD, and His name one.
And the heathen have to go up year after year to Jerusalem to worship Jesus, and keep the feast of tabernacles to be right with God for they cannot have the Spirit, and cannot be saved for they took the mark of the beast.
When Jesus rules for 1000 years on earth He will have fulfilled the role of perfect King on earth, and the law will be fulfilled, and then heaven and earth shall pass away.
Jesus had to fulfill the law, which He was sinless, and all the roles associated with Israel, as King, High Priest, Saint, Prophet, Temple, sacrifice, and whatever else He had to fulfill.
But He has not fulfilled the role of perfect King on earth, and it has to be done on earth.