lay (someone or something) to rest
1. To bury someone who has died. Paul will be laid to rest on Saturday, and I plan to go to the funeral service.
2. By extension, to stop or finish discussing, thinking about, or focusing on something. OK, I think we have to agree to disagree. Let's just lay the issue to rest and stop arguing. Why are you still being so jealous? I thought we'd laid this all to rest ages ago.