What was God's program now based on instead of John's baptism and Christ's earthly ministry?
God's program was now based on that which followed the work of the cross—His death, burial, and resurrection—rather than John's baptism and Christ's earthly ministry. This change showed a new administration, no longer centered on those prior foundations but on the finished work of Christ.
Les explains that the twelve Jews in Acts 19 were in transition: they had been saved under John's baptism, but they had known nothing of Paul's Gospel, the Body of Christ, and these further revelations. The Holy Spirit's manifestation among them proved that there was now a change in the overall program. It was no longer based on John's baptism and Christ's earthly ministry; it was now based on that which followed the work of the cross, His death, burial, and resurrection. This fit the divine purpose of showing Israel that God was moving in the work of the Holy Spirit and was now saving Gentiles.