How do we know that God calls the elect to Himself?

The doctrine of irresistible grace teaches that those whom God has elected will inevitably respond to His call. In the sermon, it is emphasized that when Jesus commands individuals to 'come after me,' they will respond because God's calling is not merely an invitation but a command that cannot be resisted by His elect. This truth is supported by scriptures such as John 6:37, which states, 'All that the Father gives me will come to me, and whoever comes to me I will never cast out.' Thus, God's sovereign grace ensures that His elect respond to His call.