MOST of Christianity say and believe Jesus was ALWAYS GODS (word) and MEDIATOR, in the Old Testament.
John 1:1 and Genesis 1:1.
Most of Christianity actually agree on something, that is, when John said: In the beginning, John was referring to the (beginning) of the Old Testament, and the (beginning) of GODS creation in Genesis 1:1 saying: In the beginning.
And as Moses goes on to tell us in Genesis 1:1: (God) created the heavens and the earth, actually proves John 1:1 was referring to the (word) of Yahweh, the one true GOD of Israel ALONE, and NOT a second person.
John 1:1a is telling us: In the beginning, (of creation), as in Genesis 1:1 saying: In the beginning.
John 1:1b and c and the word was with God, and the word was God.
John 1:1b and c is telling us that the (word) of GOD in NOT a second person, but is the spoken commands of Yahweh, the one true GOD, which is simply why John said: the word was with God, and the word was God.
John 1:2 (Οὗτος This) was in the beginning with God, meaning God's PLAN and commands, was in the beginning with God, Psalm 33:6 By Yahweh’s word, (voice and commands), the heavens were made; all their army by the breath (the spirit) of his mouth. NOT a separate Holy Spirit person, BUT the breath (the spirit, POWER) of his mouth.
Psalm 33:9 For he spoke, and it was done. He commanded, and it stood firm.
John 1:3 All things came into being through it, (God’s PLAN, creation and purpose) and without it (God’s PLAN, creation and purpose) not even one thing came into being that has come into being.
I am just an ordinary man off the street, so if you know a SINGLE verse in the Old Testament saying or teaching GOD spoke BY and THROUGH His SON Jesus, or anywhere Jesus saying He spoke for GOD to the Angels and Prophets, or a verse saying GOD and Jesus spoke to each other, in the Old Testament, please be kind and send me that verse, as I am always learning.
Or is there a SINGLE teaching ANYWHERE in the Old Testament saying GODS people prayed to Jesus, which is again odd if Jesus were always GODS MEDIATOR as Jesus is today.
GODS people always sent their prayers to Yahweh the one true GOD of Israel, as we see in the example below of
Elijah in 1 Kings 17: 20 He cried to Yahweh, and said, “Yahweh my God, have you also brought evil on the widow with whom I stay, by killing her son?” 21 He stretched himself on the child three times, and cried to Yahweh, and said, “Yahweh my God, please let this child’s soul come into him again." 22 Yahweh listened to the voice of Elijah; and the soul of the child came into him again, and he revived.