What role does preaching play in the sprinkling of many nations?

Preaching serves as the means through which the gospel is communicated and applied to the hearts of those who hear it. Romans 15:20 illustrates the connection between the preaching of Christ and the fulfillment of Isaiah 52:15, where the apostle expresses his mission to spread the message of salvation to the Gentiles. As the gospel is shared, it brings awareness of sin and consequently the need for Christ’s atoning work. The 'sprinkling' occurs as individuals respond in faith, receiving the cleansing and justification promised through Christ’s blood. Thus, the preaching of the gospel plays a crucial role in the application of the redemptive work of Christ to many nations.