Might the blood of Jesus run out on you?

Did Jesus spend three days in Hell? What does “many are called, fewer chosen” really mean? Why does Hebrew 6 say there’s “no sacrifice left” for some people? Does that mean we believers can lose our salvation?

“My husband died without a last repentance!”

How can I find a believing wife? How can I address my struggle with lust? Does Hebrew 6 teach that we can lose our salvation? My husband died recently and did not repent of any last-minute sins. Is he still in Heaven with God?