For it is by grace you have been saved, through faith—and this is not from yourselves, it is the gift of God—not by works, so that no one can boast.
Ephesians 2:8-9 (NIV)
The triune God
There is one God, who has revealed himself in the Bible as the Father, Son, and Holy Spirit.
Instead of punishing us for our sins, God sent his Son, Jesus, to pay for the sins of the world.
The empty tomb
Three days after dying on the cross, Jesus rose from the dead. Since he rose, all who believe in him will live eternally.