Jesus' blood cleanses us from ALL sin. Nothing else can do it.
Suffering doesn't. Suffering in some hypothetical spiritual places doesn't. Penance doesn't. Indulgences don't.
ONLY the blood of Jesus.
Amen. Christ died for our sins. All of them.
Yes, his kingdom is open to those who believe in Him. There are no “works” to get into heaven other than that heartfelt faith in Him.
Faith comes by hearing, and hearing by the word of God (Romans 10:17).