'Right hand' in the Bible

the angel of the Lord appeared unto him standing on the right hand of the altar of incense:

And it came to pass on another Sabbath, that He came into the synagogue and taught, and a man was there, whose right hand was withered.

And David himself says in the Book of the Psalms, The Lord said to my Lord, Sit thou on my right hand,

And from now the Son of man shall be sitting on the right hand of the power of God.