I Believe in the Forgiveness of Sins and Life Everlasting

In the Church we believe in the forgiveness of sins through Christ's Paschal Mystery, communicated to us through Baptism and the Sacrament of Penance. We believe in the resurrection of the body — the same body, transformed in glory — and in the life everlasting. Heaven is the final perfect communion with the Holy Trinity. Hell is the definitive self-exclusion from that communion. Purgatory is a final purification for those who die in God's grace but still need cleansing.

So also is the resurrection of the dead. The body is sown perishable; it is raised imperishable. It is sown in dishonor; it is raised in glory.
— 1 Corinthians 15:42-43 (WEB)

Note

CCC §976-1065. The Last Things — death, judgment, heaven, purgatory, hell — are treated under this final article of the Creed.

Bible references

John 20:22-23 · Acts 2:38 · 1 Corinthians 15:42-44 · Revelation 21:1-7 · Matthew 25:31-46 · 2 Maccabees 12:46 · 1 Corinthians 3:15 · Revelation 14:13