At least you have that right, in occurrence with Scripture, even if you may reject some other basic teachings. Just what is your sure standard of morality that we can hold you to, and judge the beliefs and actions of others by?
Don’t lie, don’t steal, be honest, love people, treat others as you wish to be treated. The bible says NOTHING about what age to have sex. There are lots of instances of dudes with multiple wives, people killing each other and so on in your sainted Bible. Marriage (with a license) is a statist construct. So give it a rest.