Nowhere anywhere are we told we cannot hear about God and do what He says and so be saved.
In fact, that is how it works.
Faith is from God, from reading His powerful message, the Bible, the New Testament. It has the powerful message that saves. We do not get faith supernaturally, as many teach, but we get faith in a very human way, from reading the supernatural message!
Acts 11:14 He will bring you a message through which you and all your household will be saved.'
2 Peter 1:3 His divine power has given us everything we need for a godly life through our knowledge of him who called us by his own glory and goodness.
WE MUST HAVE KNOWLEDGE OF GOD TO HAVE FAITH.
Where does our faith come from? Our faith comes from HEARING the word, see Romans 10:17. From hearing the word and being TAUGHT, Colossians 1:5, 7. From continuing in what we have been CONVINCED of, see 2 Timothy 3:14, and being PERSUADED, 2 Corinthians 5:11. In Acts 26:17 Jesus tells Paul he is sending him to the Jews and Gentiles to OPEN THEIR EYES and turn them from darkness to light and from the power of Satan to God. How do you think Paul is going to open the eyes of the Jews and the Gentiles? Remember, faith comes from hearing the word, and Jesus sent Paul to preach the gospel. 1 Corinthians 1:18 For Christ did not send me to baptize, but to preach the gospel–not with words of human wisdom, lest the cross of Christ be emptied of its power.
Paul is going to open their eyes by preaching to them.