ROMANS 10: 9-10

If you declare with your mouth, “Jesus is
Lord,” and believe in your heart that God
raised him from the dead, you will be
saved. 10 For it is with your heart that you
believe and are justified, and it is with your
mouth that you profess your faith and are
saved.

JOHN 3:16

For God so loved the world that he gave his one
and only Son, that whoever believes in him will
not perish but have eternal life.