1 Peter 1:14

14 As obedient children, do not conform to the evil desires you had when you lived in ignorance.

Read 1 Peter 1:14 Using Other Translations

As obedient children, not fashioning yourselves according to the former lusts in your ignorance:
As obedient children, do not be conformed to the passions of your former ignorance,
So you must live as God’s obedient children. Don’t slip back into your old ways of living to satisfy your own desires. You didn’t know any better then.