Jesus and the apostles taught that to be saved it is necessary that one:

Hear:       John 6:45, Romans 10:13-17

Believe:  John 2:30-31, Acts 16:31

Repent:  Luke 13:3-5, Acts 2:38

Confess:  Matthew 10:32-33, Romans 10:9-10

Baptized: Mark 16:15-16, Acts 2:38

(HBRCB)