How do we know effectual calling is true?

The concept of effectual calling is deeply rooted in scripture, as exemplified in the account of Zacchaeus in Luke 19:5-7. When Jesus called Zacchaeus by name, it was an effectual call that brought him down from the tree. This illustrates that when God calls His elect, they respond. The call comes with power, enabling a genuine response of faith and obedience. This aligns with the promise found in John 10:27, where Jesus states, 'My sheep hear my voice, and I know them, and they follow me.' The effectiveness of God's call is thus grounded in Jesus’ authority and His ongoing commitment to gather His people. The Holy Spirit actively works through this call, bringing about a transformation that is undeniable for those who experience it.