Salvation from sin, death, and hell is by God's grace, based on the work of Jesus Christ alone. It is received by faith apart from any human performance or merit.

John 14:6

Jesus saith unto him, I am the way, the truth, and the life; no man cometh unto the Father, but by me.

Acts 16:31

And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house.

Romans 5:1

Therefore being justified by faith, we have peace with God through our Lord Jesus Christ:

Ephesians 2:8-9

For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast.