How do we know that we are unable to do anything spiritually without God?

The Bible clearly articulates our total dependence on God for performing any spiritual activity. In John 15:5, Jesus declares, 'Without me, you can do nothing.' This highlights our spiritual impotence, as we cannot even fulfill the basic requirements of faith and obedience without divine assistance. Our works, at their best, are described as 'filthy rags' in Isaiah 64:6, underscoring that our own efforts cannot earn us favor with God. It is only through the enabling work of the Holy Spirit that we can accomplish what God requires. Our understanding of our inability ignites true humility and a spirit of worship, recognizing that all spiritual accomplishments come from Him.