According to Protestants, what Sciptures talk about what happens to the human body and soul at death?

I understand that the Bible teaches that humans have a body and a soul. I have heard it stated that at death, the soul is separated from the body. I also am aware of those who take the “soul sleep” position which I think would say the soul remains within the body at death, but is asleep until the resurrection. My question then is this: what Scriptures describe what happens to the believers at death?