1. First, there are the numerous times when there is a reference to the Lord YHVH. This usage is so frequent that there is no need to devote space to it.
2. A second personality is referred to as the Angel of YHVH. This individual is always considered distinct from all other angels and is unique. In almost every passage where He is found He is referred to as both the Angel of YHVH and YHVH Himself. For instance, in Genesis 16:7 He is referred to as the Angel of YHVH, but then in 16:13 as YHVH Himself. In Genesis 22:11 He is the Angel of YHVH, but God Himself in 22:12. Other examples could be given. A very interesting passage is Exodus 23:20-23 where this angel has the power to pardon sin because God's own name YHVH is in him, and, therefore, he is to be obeyed without question. This can hardly be said of any ordinary angel. But the very fact that God's own name is in this angel shows His divine status.
Fruchtenbaum is floundering on the slippery slope of eisegesis. Not one single apostle ever tried to convince anybody that Jesus Christ was "the angel of Yahweh, and Christ himself never made any such claim. This is a significant point, and should not be overlooked, in favour of Trinitarian speculation.
In reference to the “Angel of the LORD” – yes, this angel is unique. Yes, this angel is sometimes referred to as if he were Almighty God Himself. Yes, this angel exercises God’s own divine privileges on His behalf. Yes, this angel is to be “obeyed without question.”
But the Bible always insists that this angel is an angel; to whit, the angel of Yahweh. This angel, therefore, cannot be Yahweh Himself. If, for example, you had a friend who told you about “the messenger of Evangelion”, who frequently acted on Evangelion’s behalf, would you naturally conclude that this messenger was Evangelion himself? No, the angel of Yahweh is not Yahweh Himself, but a created angel who acts on His behalf, with His authority. Even Augustine, Jerome and Gregory the Great believed so. Dear reader, reflect on this…
Meanwhile, those who are still concerned about the extent to which this angel is capable of acting on God’s behalf, are advised to click here, where they can read a brief essay on the ancient principles of agency and representation.