Eternal Joy and New Creation

Isaiah 55:12-13

For you shall go out with joy, and be led forth with peace: the mountains and the hills shall sing praise before you, and all the trees of the country shall clap their hands.

Instead of the shrub, shall come up the fir tree, and instead of the nettle, shall come up the myrtle tree: and the Lord shall be named for an everlasting sign, that shall not be taken away.