How do we know if we're citizens of the kingdom of God?

To know if we are citizens of the kingdom of God, we must examine our relationship with Christ and our response to the truth. As stated in John 10:27, 'My sheep hear my voice, and I know them, and they follow me.' This indicates that true citizens not only hear but actively follow Christ in obedience and faith. Additionally, Mark 1:15 emphasizes the importance of repentance and faith as evidence of our citizenship. The transformation of our hearts, where we renounce trust in our own righteousness and embrace Christ's completed work, is a true indicator of our spiritual status as citizens of this eternal kingdom.