Final answer:
The expression means to avoid arguments and conflicts with one's siblings or close individuals, a value echoed in historical and religious contexts as a way to maintain peace and good relations.
Step-by-step explanation:
The phrase 'Quarrel not nor contend with thy brethren or sisters' means that one should not argue or engage in conflict with their siblings or close ones. In various historical and religious texts, the promotion of peace and harmony within families and communities is a common theme. Texts from Judaism of the 6th century BCE, such as Leviticus 19:18, reinforce the idea of loving one's neighbor and not holding grudges. Similarly, the ancient Greek play 'Antigone' by Sophocles emphasizes the bonds of love and obligation between siblings. In American history, even during the conflict between the colonists and England, there was a call to the Native Americans to remain neutral and not join the conflict, indicating the importance of not getting involved in quarrels that do not directly concern one. This idea underpins the emphasis on living in peace with others, avoiding unnecessary strife, and fostering good relationships in various social and cultural contexts.