Conservative Christians love to obsess over who has the authority in a marriage between a man and a woman. They'll tell you about Ephesians 5 and Colossians 3. They'll talk about headship and wives submitting and the metaphor of Christ and the church.
If you've been around conservative Christians long enough, you've probably encountered the idea of "Biblical manhood and womanhood" or complementarianism. It's essentially sexist patriarchy baptized with Scripture so that men retain decision-making power
That they have one set of roles and men have another.
So God created humankind in his image
in the image of God he created them;
male and female he created them.