How do we know that we need Christ's righteousness?

The Bible teaches that human beings fall short of God’s glory and His standards of righteousness. Romans 3:23 states, 'For all have sinned, and come short of the glory of God.' This underscores the inability of mankind to achieve righteousness through their works. However, believers trust in the imputed righteousness of Christ, which is fundamental for justification. As mentioned in the sermon, Paul clarifies that while we are sinners by nature, through faith in Christ, we receive an 'alien righteousness'—one that comes from Him alone. It is only through this imputed righteousness that we can stand justified before a holy God.