How do we know that God's invitation is effectual?

The sermon illustrates that while many may be called to the gospel, it is only those who are chosen that will truly respond to God's invitation. This aligns with the concept of election found in Scripture, particularly in Romans 11, where Paul explains how not all Israel has rejected God, but a remnant has been chosen by grace. This affirms that God's invitation is not merely about the act of calling but also involves His sovereign purpose in choosing certain individuals to receive His grace, enabling them to embrace the gospel’s truth.