WHO CAN TELL ME?

 Salvation is by Christ alone - Neither is there salvation in any other: for there is none other name under
heaven given among men, whereby we must be saved. (Acts 4:12) 

Salvation is by Grace alone - 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. (Ephesians 2:8-9)

Salvation is by Faith alone - Therefore being justified by faith, we have peace with God through
our Lord Jesus Christ. (Romans 5:1)