Symbolically, the right hand was considered to be of great importance in the Bible. (Gen. 48:13-20; Mt 25:33; Rev. 1:16, 20; 2:1) To be on the right hand of a ruler was to have the most important position, next to the ruler himself. However, the person who was on the right hand of the ruler was obviously not the ruler himself.
Psalms 110:1, Acts 7:55,56; Romans 8:34 and 1 Peter 3:22 all mention Jesus being at (not just the Father's right hand, but) God's right hand. Just as the example of the person above who was on the right hand of the ruler but clearly was not the ruler himself, Jesus being at God's right hand is a description of him being a separate person to a secondary position from God.
Acts 5:31 also says that, "God EXALTED him at his right hand." If Jesus was God, how could he be exalted any further?
For more, see:
Does the Bible phrase Jesus as a separate person from God?
Is God Always Superior to Jesus? - Jesus Distinguished From God
Trinity Scripture Index
Search For Bible Truths - ARCHIVE
Search For Bible Truths - Search Guide