If there is any doubt that Jesus is the "Lord" of the old testament, and author of it who spoke through his prophets. Written over and over again "So they will know that I am the Lord", yet when Jesus came they did not know he was the Lord.
A couple lines of scripture showing that Jesus is the author.
Scripture- Psalm 82:6 "I said, 'You are "gods"; you are all sons of the Most High.'
My comment - This is a line from the Old Testament written by David a prophet of the Lord.
Scripture- John 10:34 Jesus replied, "Is it not written in your Law: 'I have said you are gods' ?
My comment - Here's is Jesus speaking in first person that He said in the Old Testament that you are gods.
A couple lines of scripture showing that Jesus is the author.
Scripture- Psalm 82:6 "I said, 'You are "gods"; you are all sons of the Most High.'
My comment - This is a line from the Old Testament written by David a prophet of the Lord.
Scripture- John 10:34 Jesus replied, "Is it not written in your Law: 'I have said you are gods' ?
My comment - Here's is Jesus speaking in first person that He said in the Old Testament that you are gods.