Ephesians 2:4-9New International Version (NIV)

⁴ But because of his great love for us, God, who is rich in mercy, ⁵ made us alive with Christ even when we were dead in transgressions—it is by grace you have been saved. ⁶ And God raised us up with Christ and seated us with him in the heavenly realms in Christ Jesus, ⁷ in order that in the coming ages he might show the incomparable riches of his grace, expressed in his kindness to us in Christ Jesus. ⁸ For it is by grace you have been saved, through faith—and this is not from yourselves, it is the gift of God— ⁹ not by works, so that no one can boast.

Romans 10:14-17New International Version (NIV)

¹⁴ How, then, can they call on the one they have not believed in? And how can they believe in the one of whom they have not heard? And how can they hear without someone preaching to them? ¹⁵ And how can anyone preach unless they are sent? As it is written: “How beautiful are the feet of those who bring good news!”^[a]

¹⁶ But not all the Israelites accepted the good news. For Isaiah says, “Lord, who has believed our message?”^{[b] 17} Consequently, faith comes from hearing the message, and the message is heard through the word about Christ.

1 Corinthians 2:14New International Version (NIV)

¹⁴ The person without the Spirit does not accept the things that come from the Spirit of God but considers them foolishness, and cannot understand them because they are discerned only through the Spirit.

1 Corinthians 12:3New International Version (NIV)

³ Therefore I want you to know that no one who is speaking by the Spirit of God says, “Jesus be cursed,” and no one can say, “Jesus is Lord,” except by the Holy Spirit.