Proverbs 30:4 (HCSB): “Who has gone up to heaven and come down? Who has gathered the wind in His hands? Who has bound up the waters in a cloak? Who has established all the ends of the earth? What is His name, and what is the name of His Son-- if you know?”
Agur describes God anthropomorphically with “hands” and a physical body who can go “up” and “down” from “heaven” so that we finites can understand that the High and Lofty One can go up and down with His Mighty Presence while remaining omnipresent in continually filling the heavens and the earth (Jer. 23:24).
Agur then asks, “What is His name, and what is the name of His son – if you know?” Trinitarians allege that the words, “what is the name of His son” proves that the Son literally existed as a living Son in heaven before his virgin conception on the earth. Yet when we look at other scriptures we find that the name of the son was not actually given to him as a living son during the Old Testament time period.
Isaiah 9:6 - “For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counseller, The mighty God, The everlasting Father, The Prince of Peace.”
The words, “shall be called” in Isaiah 9:6 prove that the son was not actually called “wonderful, counselor, The Mighty God,” and “the Everlasting Father” until a future point in time.
The prophet Isaiah had predicted that the name of the child born and son given would be the same name as “the Mighty God” and of “the Everlasting Father.” Since Yahweh is the divine name of the Mighty God and Everlasting Father, the name of Jesus in Hebrew [Yahshua] literally means “Yahweh Saves” or “Yahweh is Salvation.” Therefore Jesus is the name of the Mighty God and of the Everlasting Father, yet that name was not actually given unto him until his future conception and birth.
Luke 1:35 informs us that the reason why the Son is called the Son is because of his virgin conception and birth. For the angel said to Mary, “The Holy Spirit will come upon you, and the power of the Highest will overshadow you. For that reason the child which shall be born of you SHALL BE CALLED THE SON OF GOD.” Hence, the Son is called the Son of God because of the Holy Spirit coming down from heaven to supernaturally conceive the Christ child. There is no other scriptural reason why the Son is called the Son other than the New Testament reason given in Luke 1:35.
Jeremiah 23:5-6 - “I will raise unto David a righteous branch, and A KING SHALL REIGN … And this is his name whereby HE SHALL BE CALLED, YAHWEH our righteousness.”
A KING SHALL REIGN (Jer. 23:5): Rather than reigning as a living Son King up in heaven during the Old Testament time period, the prophet Jeremiah predicted by the Spirit that Jesus as a Son would reign as a future king in the prophetic future.
“…This is his name whereby HE SHALL BE CALLED, YAHWEH our righteousness (Jer. 23:6).”
Since Jesus as a Son would be “CALLED YAHWEH” in the prophetic future, it is impossible for Jesus to have literally been called a Yahweh God the Son throughout eternity past!
Jesus as a Son prayed in John 17:11 – “Holy Father, keep them THROUGH YOUR NAME, THE NAME WHICH YOU HAVE GIVEN ME.”
Since Jesus was clearly “GIVEN” the Father’s Name at a specific point in time, the Son could not have literally possessed the Name of Yahweh as his own until he was supernaturally conceived via his virgin begetting.
Philippians 2:9 (HCSB) – “For this reason God highly exalted Him and GAVE HIM THE NAME WHICH IS ABOVE EVERY NAME...”
Since Jesus as a Son was given the name which is above every name [literally, the Name of Yahweh], it is impossible for Jesus to have actually possessed the Name of Yahweh as a living Son throughout eternity past.
Hebrews 1:4 (KJV) – “He has by inheritance OBTAINED A BETTER NAME than they (the angels).”
How could Jesus have by inheritance “obtained” the Name of Yahweh as his own name if he has always possessed the Name of Yahweh as an alleged timeless eternal Son throughout the timeless past?
Wherefore, we can conclude that while the Son’s Name was already made known by God through his prophets during the Old Testament time period, God the Father did not actually give that name to his son until the son’s future virgin conception (Matthew 1:18-23). Therefore the words, “What is His name, and what is the name of His Son-- if you know” in Proverbs 30:4 does not speak of a living son up in heaven as an actual reigning Son King because the prophets plainly declared that the Son “shall reign” as a “King” (Jer. 23:5-6) in the prophetic future and that the Son “shall be called Yahweh” when he would be given that Name as his own by inheritance (Heb. 1:4; Phil. 2:9).
Matthew 1:18-23 (NASB):18Now the birth of Jesus Christ was as follows: when His mother Mary had been betrothed to Joseph, before they came together she was found to be with child by the Holy Spirit (“by” is from the Greek prep. “ek” which literally means “out of” or “out from” the Holy Spirit). 19And Joseph her husband, being a righteous man and not wanting to disgrace her, planned to send her away secretly. 20But when he had considered this, behold, an angel of the Lord appeared to him in a dream, saying, “Joseph, son of David, do not be afraid to take Mary as your wife; for the Child who has been conceived in her is of the Holy Spirit (“of” is from the Greek prep. “ek” which literally means “out of” or “out from” the Holy Spirit). 21“She will bear a Son; and you shall call His name Jesus, for He will save His people from their sins (The Name of Jesus literally means “Yahweh Saves” in Hebrew).”22Now all this took place to fulfill what was spoken by the Lord through the prophet: 23“BEHOLD, THE VIRGIN SHALL BE WITH CHILD AND SHALL BEAR A SON, AND THEY SHALL CALL HIS NAME IMMANUEL,” which translated means, “GOD WITH US.”