But your sins have separated between you and your God, and your sins have hidden His face from you, so that He will not hear. (Isaiah 59:2)
For it is by grace you have been saved, through faith—and this not from yourselves, it is the gift of God—not by works, so that no one can boast. (Ephesians 2:8-9)
Most people believe in God, even Satan does. But to receive salvation, we must turn to God, form a personal relationship, turn away from our sins, and follow Jesus christ.
Satan is a great deceiver of souls [minds] & do not allow to find truth. "But even if our gospel is veiled, it is veiled to those who are perishing, whose minds the god of this age [Satan] has blinded, who do not believe, lest the light of the gospel of the glory of Christ, who is the image of God, should shine on them". (2 Corinthians 4:3-4)
See other posts;
How I can receive Jesus christ?
Is Christianity a Religion?
Salvation of Body, Soul and Spirit
How we can confirm Jesus Christ is Alive?
Inspirational Quotes from the Holy Bible