It is clear that the descendants of Kedar and Nebaiotha settled not too far from Jerusalem, since they provided sheep and rams for the daily sacrifice. They most likely settled in the very northern Levant.
This promise is repeated in Revelation 21:22 And I saw no temple therein: for the Lord God Almighty and the Lamb are the temple of it. 23 And the city had no need of the sun, neither of the moon, to shine in it: for the glory of God did lighten it, and the Lamb is the light thereof. 24 And the nations of them which are saved shall walk in the light of it: and the kings of the earth do bring their glory and honour into it. 25 And the gates of it shall not be shut at all by day: for there shall be no night there. 26 And they shall bring the glory and honour of the nations into it. 27 And there shall in no wise enter into it any thing that defileth, neither whatsoever worketh abomination, or maketh a lie: but they which are written in the Lamb’s book of life.
There may be more famous renditions of this song, but this one moved me.
Where Kedar lives: Kedar was the second son of Ishmael, he settled near the eastern borders of Israel, and among other things supplied sheep and goats for the temple services. Isaiah 60:7 All the flocks of Kedar shall be gathered to you; the rams of Nebaioth shall minister to you; they shall come up with acceptance on my altar, and I will beautify my beautiful house.
Islamic tradition place Kedar near Mecca, but that does not square with the biblical account, therefore the “New song” does not mean the doctrine of Islam.
Elam is another word for ancient Persia, the fall of Babylon is described in https://lenbilen.com/2017/09/24/daniel-5-the-handwriting-on-the-wall/
Tema: The name of a son of Ishmael (Gen 25:15; 1 Ch 1:30) , also an oasis half-way between Edom and Medina in what is now the Levant part of Saudi Arabia.
Kedar, meaning dark-skinned was the second son of Ishmael (Genesis 25:13) . It was also the name for the nomadic tribes of Arabs, the Bedouins generally (Isa. 21:16; 42:11; 60:7; Jer. 2:10; Ezek. 27:21), who dwelt in the northwest of Arabia. They lived in black hair-tents (Song of Songs 1:5). To “dwell in the tents of Kedar” was to be cut off from the worship of the true God (Psalms 120:5). The Kedarites suffered at the hands of Nebuchadnezzar (Jer. 49:28-29).
After Sarah’s death Abraham married one of his concubines. Keturah already had six sons with Abraham, according to first Chronicles:
Ishmael was there at Abraham’s death, and helped bury Abraham. Thus he had not moved far away yet.
Of particular interest is Ishmael’s second son, Kedar. His name is closely associated with Arabia. But Kedar lived much closer to Jerusalem than what the Muslims suggest. They claim he moved to what is now Mecca, but according to Isaiah 60:7 he must have lived much closer.
All Kedar’s flocks will be gathered to you,
the rams of Nebaioth will serve you;
they will be accepted as offerings on my altar,
and I will adorn my glorious temple.
The lambs and other animals used for sacrifices were raised much nearer Jerusalem so they could more easily be driven as herds.
And this is the reason God said: Esau have I hated. Esau did not consider the spiritual dimension of his birthright.