“For by grace are ye saved through faith; and that not of yourselves: it is the gift of God.” Ephesians 2:8.
Two of the most common words in Christianity. Grace and faith. It’s only by God’s grace that we can be saved. He asks only that we put our faith in him. There is nothing we can do to deserve to be saved. There is no way we can earn it. It is a gift, to be received only by trusting (that’s faith) in his grace.