In Acts 10:9, Peter's rooftop vision prepared him to meet Cornelius, explaining why he was willing to enter a Gentile home.

Acts 10:27 shows Peter entering and finding the crowd Cornelius had gathered, confirming the large assembly prepared.

Acts 10:30 recounts Cornelius's vision, revealing the divine directive that led him to gather his relatives and friends.

Zechariah 8:20-23 prophesies Gentiles seeking God through Jews — Cornelius, a Gentile, gathers his household to hear Peter, a Jew, fulfilling this.