The Bible contains principles and regulations concerning behavior, with various passages implying different roles or activities for men and women. In terms of gender roles in marriage, complementarians believe that husbands are to be leaders and wives are to be submissive followers. However, the biblical evidence for husbands being rulers or leaders is limited, with only two verses explicitly mentioning this. The Hebrew Bible emphasizes equality, similarity, and unity between men and women in Genesis, and does not directly address gender roles related to authority and submission in marriage.