During the Acts transition, could a believer of Israel's kingdom remnant cross into the Body of Christ? Scripture answers yes, and names the proof: Barnabas, Silas, and Apollos among the Body's own apostles and prophets, a whole assembly at Antioch, and the Israel of God. Yet the programs never merge and the twelve stay fixed.

The dispensational boundary is not a single line but a corridor with two walls. The mystery and the Body of Christ began at Acts nine, with Paul; the transitional overlap of Israel's program and the mystery closed at Acts twenty-eight. Not Acts 2 and not Acts 28 — Acts is the record of the transition between the two walls.

The Body of Christ did not begin at Pentecost. This article examines why Pentecost fulfilled Joel's prophecy rather than birthing the mystery, how Spirit baptism differs from the baptism of the Holy Ghost, and why the dispensation of grace began when the risen Christ appeared to Paul on the Damascus road.

Not everything Paul did during the Acts period is what the Body of Christ practices today. This article identifies the transitional elements — synagogue visitation, sign gifts, water baptism, Jewish observances, the Jerusalem collection — that belonged to the overlap period and have since ceased.

Romans 11 is not describing how the Body of Christ is formed. It is explaining the transitional olive tree during the Acts period, when kingdom blessings were temporarily extended to Gentiles to provoke Israel to jealousy. This article shows what the warning of being cut off means and why the two programs must be kept distinct.