How do we know that God's call is irresistible?

The concept of an irresistible call is rooted in the sovereignty of God in salvation. When God calls someone to salvation, that call is effectual; it accomplishes God's purpose. In 1 Corinthians, Paul addresses the church as those who have been sanctified, indicating their response to God's call is not based on their will but on His powerful initiative. Scripture teaches that those who are truly called will respond positively, as seen in biblical accounts of regeneration where individuals cannot resist the inner work of the Holy Spirit. This does not negate human responsibility; rather, it affirms that God's grace is sufficient to overcome every resistance.