Davo, The right hand of God is the power and authority of the Holy Spirit. No, Jesus was not the only at the His right hand.
Deut. 33:2-3 “The Lord came from Sinai, and dawned on them from Seir; He shone forth from Mount Paran, and He came with ten thousands of saints; from his right hand came a fiery law for them. Yes , He loves the people; all His saints are in Your hand.”
Isaiah 63:11-12 “Where is He who put His Holy Spirit in them, who led them by the right hand of Moses with His glorious arm, dividing the water before them to make for Himself an everlasting name.”
Read the Old Testament.
Bob, The rulers of Israel at that time were claiming to be the sons of Abraham, sons of God, and heirs to the throne. But, they were not. Sons of Abraham are those who follow the Spirit of God and obey His voice just as the father Abraham did. As Genesis 18: 19 says “For I have known him, in order that he may command his children and his household after him, that they keep the way of the Lord, to do righteousness and justice.”