It is this easy.
Read: Romans 10:9
9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
13 Be on guard. Stand firm in the faith. Be courageous. Be strong.
13 When the Spirit of truth comes, he will guide you into all truth. He will not speak on his own but will tell you what he has heard. He will tell you about the future.
1 Who may worship in your sanctuary, Lord?
Who may enter your presence on your holy hill?
2 Those who lead blameless lives and do what is right,
speaking the truth from sincere hearts.