Admit to God that you are a sinner. Repent, turning away from your sin.
Believe that Jesus Christ is God’s Son and accept God’s gift of forgiveness from sin.
For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life. John 3:16
But God demonstrates His own love toward us, in that while we were still sinners, Christ died for us. Romans 5:8
For you have been saved by grace, through faith, and that not of yourselves, it is the gift of God, not of works, lest anyone should boast. Ephesians 2:8-9