Why is the concept of 'nothing but Christ' vital for Christians?

The sermon illustrates that in our approach to God, we can bring nothing but Christ. The brothers were reminded they could not approach Joseph's presence without bringing Benjamin, which symbolizes our need to come before God only through His Son, Jesus Christ. Our works, efforts, or offerings do not merit us any favor before God. Instead, we must rely entirely on the perfect work of Christ, recognizing that He is our only means of salvation and access to the Father. This truth not only fosters humility but also deepens our gratitude and dependence on God’s grace, instilling confidence in our standing before Him as secure through Christ's righteousness.