Among the Hebrews, as well as e Greeks and Romans, the right side was considered superior to the left; and as the right was the side of ad, so was the left of bad omen. Dexter, or right, signified also propitious, and sinister or left, unlucky. In the Scriptures we find frequent allusions to this superiority of the right. Jacob, for instance, called his youngest and favorite child, Benjamin, the son of his right hand, and Bathsheba, as the king's mother, was placed at the right hand of Solomon (see Left Side).
- Source: Mackey's Encyclopedia of Freemasonry