Matthew 7:21 Not every one that said to me, Lord, Lord, shall enter into the kingdom of heaven; but he that does the will of my Father which is in heaven.
There are conditions on God’s promise. There are conditions on the inheritance. There are conditions on salvation.
Unless you think that Paul trumps Jesus. Unless you think that Paul is the Messiah and Jesus only pointed the way to Paul. Unless you think that Jesus is irrelevant to the Gentiles. Unless you think that the Son of God is only second rate compared to the writings of Paul.
everyone should read Acts 22:16 to see when we call on the name of the Lord.