Muslims might argue that the concept of the Trinity is not present in the Old Testament and that God is singular.

The Aaronic Blessing, as recorded in Numbers 6:22-26, instructs Aaron to bless the Israelites by invoking the name of Yahweh three times. This triple invocation can be interpreted as an indication of God's triune nature, as it reflects a pattern of addressing all three Persons of the Godhead. Furthermore, the Hebrew term 'paniym,' translated as 'face' or 'presence,' signifies that God's presence is essential for the blessing and protection of His people. The significance of God's face shining upon the Israelites is echoed in Psalms, where it is linked to salvation. This understanding aligns with the broader biblical narrative that reveals God's tri-personal nature through various passages, including the use of plural pronouns and verbs to describe God throughout the Scriptures.