God the Father is revealed as YHWH in the sacred writings, embodying the essence of the one true deity known to Israel. YHWH, the only God with whom Israel made a covenant, revealed Himself to Moses on the mount and through him to the people, establishing His singular identity among them. Though generally perceived as one Being by the common man of Israel, the name Elohim, a plural noun, hints at a greater complexity within God's nature. The solemn declaration in Deuteronomy 6:4, "Hear, O Israel: The LORD our God, the LORD is one," emphasizes not a numerical singularity but a unique and unified character of YHWH. He is unparalleled, with no other like Him, and wholly united in mind and purpose with the Son, acting in perfect harmony. The name YHWH, meaning "I AM WHO I AM" as defined in Exodus 3:14, signifies eternal existence, applying equally to both the Father and the Son as divine Beings without beginning or end. Though predominantly associated with the God of the Old Testament, who became Jesus Christ, YHWH also refers to the Father in specific instances, as seen through the lens of later revelation. In passages such as Psalm 2 and Psalm 110, the Father is understood as YHWH, speaking to the Son or to the anointed king, revealing a relationship of authority and unity that transcends the understanding of ancient Israel. Additionally, in Daniel 7, the Ancient of Days, a term akin to YHWH in suggesting eternal life, clearly represents the Father, positioned in seniority over the Son of Man. These glimpses in the Old Testament show the Father as YHWH upon His throne in heaven, deserving of all praise, glory, and honor. He pours out His love and works tirelessly with His Son to bring humanity into His everlasting Kingdom, revealing Himself not as a wrathful deity but as a loving, Almighty Father desiring to shape countless sons and daughters into His image.

God the Father is acknowledged as God over all, and thus, He is certainly the God of the fathers. In at least one instance, the title "God of the fathers" refers specifically to Him rather than to the Son. However, the broader context reveals that the Son, as the divine Messenger and also God from the beginning, interacted visibly with the fathers. The New Testament emphasizes that no one has seen the Father at any time, except the Son, underscoring that it was the Son, known by titles such as Yahweh and the Almighty, who appeared to Abraham, Isaac, Jacob, and Moses. While God the Father holds supreme authority, it was through the Son that the fathers directly encountered and knew God.

In the discussion of Psalm 110 as a purely prophetic Messianic psalm that applies solely to Christ, the text identifies the opening oracle as Yahweh declaring to David's Adon that He should sit at His right hand until His enemies become His footstool. Yahweh is presented as the Father, the God above all, while the second Lord is the Son who serves as David's Master. This distinction establishes three persons in view and underscores the Father-Son relationship along with the existence of two God beings. The passage is linked to the psalm's broader portrayal of Christ's ascension, His priestly role after the order of Melchizedek, and His future exercise of kingship and judgment at the second coming, thereby confirming the two divine persons through the most frequently quoted Old Testament verse in the New Testament.

The text identifies the Father as YHWH, the great God of all things whose personal name means the I Am, the One who was, the One who is, and the One who shall be. In Psalm 110:1 this name appears when Yahweh declares to David's Lord, identified as the Son, the command to sit at His right hand until His enemies become His footstool. The verse supplies the textual foundation for the Father-Son relationship, the basis of all true theology, by naming only two divine persons and excluding any third person. The same oracle moves forward to the Son's second coming, when the Father sends the rod of the Son's strength out of Zion so that the Son may rule amid His enemies. Throughout the psalm the Father remains the source of the irrevocable oath that establishes the Son as priest forever after the order of Melchizedek, the one who will execute judgment and fill places with the bodies of opposing kings. These statements about the Father as YHWH are woven into the larger exposition of Messianic psalms, showing that the Father's declarations and actions secure the Son's kingship, priesthood, and ultimate victory on behalf of the saints.