'Right hand' in the Bible

And Asahel pursued after Abner, and in going he turned not to the right hand nor to the left from following Abner.

And Abner said to him, Turn thee aside to thy right hand or to thy left, and lay hold on one of the young men, and take his armor. But Asahel would not turn aside from following him.

And the king said, Is the hand of Joab with thee in all this? And the woman answered and said, As thy soul lives, my lord the king, none can turn to the right hand or to the left from anything that my lord the king has spoken, for

And he cast stones at David, and at all the servants of king David, and all the people and all the mighty men were on his right hand and on his left.

And Joab said to Amasa, Is it well with thee, my brother? And Joab took Amasa by the beard with his right hand to kiss him.