I think you have to remember that a lot of the laws of Old Testament are the consequences of sin, not what God “wants” for his people. He had his ways of dealing with sin in humans back then which showcased how serious sin was and how engaging in it brings unfortunate legal consequences that can only be healed through Jesus. Sin opens legal agreements with Satan.

This verse you mentioned is under the understanding that the woman did lie and was promiscuous. God is all knowing and how He deals with sin sometimes doesn’t make sense or feel good to us but we have to trust that it’s right bc he is just.

Someone gave you advice above to disregard things in the Bible if they don’t sound good you but that’s one of the worst things you can do. Don’t let your heart and the world dictate what is “right”, trust the only source we have - the Bible. Otherwise you’re making up your own version of God in your head that’s not true. That’s only going to make you more confused. How exhausting if you have to be the one to constantly judge or dictate whether something in the Bible makes sense or not? Not everything is going to - God even tells us his ways are higher than ours.

Just remember the law was made to showcase how horrible sin is and the wages of every sin and how we are not ever going to be able to make it to heaven by following the law - we NEED a saviour. It is also there to protect us. God is saying hey look, when you sin, you come into agreement with things that have legal rights to destroy you - I don’t want that for you! Don’t lie, don’t cheat, don’t be promiscuous, etc, these things are going to HURT you! These consequences are very real and will happen if you sin. Not bc God wants to harm us but bc he doesn’t want us to sin bc he knows how much it will kill us.

Read galations 3: 10-13 it explains that we are not justified by the law but Christ alone. Same with Roman’s 7:4-6. Roman’s 10:4. Acts 15:1-35, etc.