'Right hand' in the Bible

Then the guiding angel showed me Joshua the high priest [representing disobedient, sinful Israel] standing before the Angel of the Lord, and Satan standing at Joshua’s right hand to be his adversary and to accuse him.

“In that day I will make the clans of Judah like a firepot in a woodpile, and like a flaming torch among sheaves [of grain]. They will devour all the surrounding peoples on the right hand and on the left; and the people of Jerusalem will again live [securely] in their own place, in Jerusalem.