Mishpatim (2:94b-126a)

2:115b

שכן קרוב מאח רחוק. דהיינו עמודא דאמצעיתא דאיהו בן יה

Better is a neighbor that is near, than a brother far off.
This neighbor is the Middle Pillar in the Godhead,
which is the Son of Yah.
(Zohar 2:115)

The Zohar also says of the Son of YHWH:

The Holy One, blessed be He, has a son, whose glory (tifret)
shines from one end of the world to another. He is a great
and mighty tree, whose head reaches heaven, and whose roots
are set in the holy ground, and his name is “Mispar” and his
place is in the uppermost heaven… as it is written, “The heavens
declare (me-SaPRim) the glory (tifret) of God” (Ps. 19:1).
Were it not for this “Mispar” there would be neither hosts
nor offspring in any of the worlds.
(Zohar 2:105a)

This Zohar passage is intended to recall a passage from the Bahir:

Why are they called Sephirot?
Because it is written (Ps. 19:2),
“The heavens declare (me-SaPRim) the glory (tifret) of God.”
(Bahir 125)

The Zohar also says concerning the Son of Yah:

“We may also translate “he who withholds blessings
from the Son” (Prov. 11:26), whom the Father and Mother
have CROWNED and blessed with many blessings,
and concerning whom they commanded, “Kiss the SON
lest he be angry” (Ps. 2:12), since he is invested
with judgment (GEVURAH) and with mercy (CHESED)”
(Zohar 3:191b)

According to the Zohar, the Middle Pillar of the Godhead is not only known as the “Son of Yah” but also as “Metatron”:

Better is a neighbor that is near, than a brother far off.
This neighbor is the Middle Pillar in the godhead,
which is the Son of Yah.
(Zohar 2:115)

The Middle Pillar is also known as “Metatron”:

The Middle Pillar [of the godhead] is Metatron,
Who has accomplished peace above,
According to the glorious state there.
(Zohar 3:227)