I do not see any scripture that supports Jesus being present in the Old Testament. Every example of a Christophany seems to be either the presence of an angel, or a Theophany.
If you believe that Jesus was the 4th man in the fiery furnace, the angel that Jacob wrestled with, or the 3rd man who was talking to Abraham, please give an explanation of how this is Biblical. (Please use the Bible, not explain your personal version of how the Trinity works)
From my understanding of scripture, Jesus humbled Himself into the form of a man only once, but also permanently: when He was born to Mary.
Joh 8:58 Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am.
Gen 18:1-2 And the LORD appeared unto him in the plains of Mamre: and he sat in the tent door
in the heat of the day; (2) And he lift up his eyes and looked, and, lo, three men stood by him:
and when he saw them, he ran to meet them from the tent door, and bowed himself toward the
ground,
Gen 18:22-23 And the men turned their faces from thence, and went toward Sodom: but Abraham
stood yet before the LORD. (23) And Abraham drew near, and said, Wilt thou also destroy the
righteous with the wicked?
The men went toward Sodom, two angels arrived in Sodom. It also says Abraham stood yet before the
Lord. Abraham saw 3 men, yet only 2 arrive in Sodom. That leaves the third. Where did the third
go? Well it says Abraham yet stood before the Lord. That is the third.
Now concerning Jacob wrestling with someone. Not once in Gen 32:24-30, of the story
does it mention an angel. It says he wrestled a man. And Jacob said Gen 32:30 And Jacob
called the name of the place Peniel: for I have
seen God face to face, and my life is preserved.
Concerning Moses, Exo 33:21-23 And the LORD said, Behold, there is a place by me, and thou
shalt stand upon a rock: (22) And it shall come to pass, while my glory passeth by, that I will
put thee in a clift of the rock, and will cover thee with my hand while I pass by: (23) And I will
take away mine hand, and thou shalt see my back parts: but my face shall not be seen.
Now, the thing about Jesus is, He is God and man. Before the Word became flesh, He was
Jehovah. After the Word became flesh, He was still Jehovah. In Gen 18, when it says the LORD,
the word in Jehovah. To say Jesus is God is the same as saying Jesus is Jehovah. He is Jehovah
and man.