This study investigates the core message embedded within the primary speeches in Acts of the Apostles, employing information structure analysis as developed by Stanley E. Porter and Matthew B. O’Donnell. By examining the speeches of Peter and Paul, this research identifies recurrent linguistic patterns and structural emphases that reveal the central topic of early apostolic proclamation. Focusing on four key speeches—Peter’s Pentecost speech (Acts 2:14–36), Peter’s speech after healing the crippled beggar (Acts 3:12–26), Paul’s speech in Pisidian Antioch (Acts 13:16–41), and Paul’s Areopagus speech in Athens (Acts 17:22–31)—this study demonstrates how “God raised Jesus” emerges as the central topic across these texts. While Peter and Paul adapt their rhetorical strategies based on audience and context, their core proclamations remain structurally aligned, reinforcing the centrality of the resurrection in the faith of the early Christian community. As such, this study illustrates how linguistic prominence in biblical discourse shapes theological emphasis, thus demonstrating how syntagmatic analysis grounded in functional linguistics enhances both exegetical precision and theological understanding of biblical discourse.