1 Corinthians 12:3-5 So I want you to understand that no one speaking by the Spirit of God says, “Jesus is cursed,” and no one can say, “Jesus is Lord,” except by the Holy Spirit. Now there are different gifts, but the same Spirit. And there are different ministries, but the same Lord.

It is only by the Holy Spirit that we believe that Jesus is the Messiah, the one appointed by God to execute Israel’s eschatology. - John P. Harrigan