You seem to be quite patient with anyone who comes to you and tells you about a Jesus that is different from the Jesus we told you about. You seem very willing to accept a spirit or a message that is different from the Spirit and message that you received from us.
Peter said to them, “Change your hearts and lives and be baptized, each one of you, in the name of Jesus Christ. Then God will forgive your sins, and you will receive the gift of the Holy Spirit.
So Peter told them to baptize Cornelius and his relatives and friends in the name of Jesus Christ. Then they asked Peter to stay with them for a few days.
These people had been baptized in the name of the Lord Jesus, but the Holy Spirit had not yet come down on any of them. This is why Peter and John prayed.