Pentecost

Pentecost is the benchmark Peter's Jewish companions are involuntarily comparing this moment to — the Spirit's arrival on the Gentiles is identical in character to the founding moment of the church.

Pentecost is explained here as the Jewish harvest festival 50 days after Passover — context that explains why Jerusalem was packed with diaspora Jews from every nation who would witness the Spirit's arrival.

Pentecost is Paul's hard deadline — he's racing to reach Jerusalem in time for the festival, which gives the entire travel itinerary its urgency and drives his decision to skip Ephesus.

Pentecost is the reference point here — the same Spirit who fell on Jewish believers in Jerusalem at Pentecost is now being given to Samaritan believers, demonstrating that the Spirit belongs to no single ethnicity.

Pentecost is named here as the New Testament fulfillment of the Feast of Weeks — the same calendar slot where the Holy Spirit arrived in Acts 2, giving the ancient harvest festival a whole new meaning.

Pentecost is the fulfillment event named here — the moment centuries after Joel when the Spirit was actually poured out on all flesh, exactly as this prophecy promised.

Pentecost is the coming event Jesus points toward when He promises 'power from on high' — the moment the Spirit will arrive and launch the global mission He just outlined.

Pentecost is identified here as the New Testament name for this same Feast of Weeks — the annual harvest celebration that would later become the moment the Holy Spirit descended and the church was born.