How do we know that God calls His elect?

The call of God is an essential aspect of His sovereign plan for salvation. In the sermon, it is noted that Levi was chosen by Christ not out of merit but out of God's grace, which was evident when Jesus saw him and commanded, 'Follow Me.' This reflects the truth of Romans 8:30, where it states, 'Those whom He predestined, He also called.' God's call is both effectual and transformative, meaning that those He calls will respond. This assurance of being chosen before the foundation of the world provides believers with profound security in their standing before God.