for the Spirit had not yet come upon any of them — they had only been baptized into the name of the Lord Jesus.
In context
14When the apostles in Jerusalem heard that Samaria had received the word of God, they sent Peter and John to them. 15The two went down and prayed for them, that they might receive the Holy Spirit; 16for the Spirit had not yet come upon any of them — they had only been baptized into the name of the Lord Jesus. 17Then they laid their hands on them, and they received the Holy Spirit. 18When Simon saw that the Spirit was given through the laying on of the apostles’ hands, he offered them money.
