'Right hand' in the Bible

Asahel pursued Abner and did not turn to the right or to the left as he followed him.

The king said, “Is the hand of Joab with you in all of this?” And the woman answered, “As your soul lives, my lord the king, no one can turn to the right or to the left from anything that my lord the king has said. Indeed, it was your servant Joab who commanded me; he put all these words in the mouth of your maidservant.

He threw stones at David and at all the servants of King David; yet all the people and all the warriors remained on his right and on his left.

Joab said to Amasa, “Is it going well with you, my brother?” And with his right hand Joab took hold of Amasa by the beard [as if] to kiss him [in greeting].