Paul's question to the Ephesians was "Have you received the Holy Ghost since they believed? Believed what? Believed in the death, burial and resurrection of the Lord Jesus. After Paul tells them about Jesus they comply with his instruction to be baptized in the name of the Lord Jesus, (water) and he lays hands on them and they receive the Holy Ghost. (Spirit) These actions line up exactly with what Jesus said was necessary in order for a person to be reborn. (John 3:3-5) And what was conveyed on the Day of Pentecost. (Acts 2:38)...
If like those Ephesian disciples [and a HUGE suave of the evangelical movement] you are not told about the baptism with the Holy Ghost you will not believe God for it and so will not receive it. If preachers do not preach that healing is part of salvation at the cross they will not be healed.
God confirms His word.
I was saved through a pentecostal ministry so I got the full whack.
To my knowledge nowhere is it suggested that individuals are indwelt with the Holy Ghost the moment they believe in Jesus' sacrifice. However, scripture does indicate that the gospel message includes the need to believe in Jesus' sacrifice as well as man's responsibility to repent, get water baptized, and be indwelt. Those who believe that message will be obedient to God's plan and actually receive the indwelling by the Holy Ghost at some point. (Acts 2:38-41, 8:12-18, 9:17-18, 10:44-48, 19:1-6, 22:16) Also relevant is the fact that a majority of the records mention that the indwelling of the Holy Ghost was evidenced by speaking in tongues.
According to the word being indwelt by the Holy Ghost is required of all. (Romans 8:9-11) Taking this into consideration we know that the Ephesian disciples were in fact lost until they met this requirement and others presented by the Apostle Paul. (Acts 19:1-6) Sadly, if not, they would have heard those dreaded words "I never knew you." (Matthew 7:23)