How do we know that righteousness comes from Christ alone?

The sermon clearly articulates that no one is righteous on their own; Romans 3:10 reminds us, 'There is none righteous, no, not one.' This reality points to our absolute dependence on Christ's righteousness for salvation. Ephesians 1 affirms that those who are in Christ have been chosen and accepted, not based on their own merit but through God's grace. Our acceptance before God hinges entirely on Christ's perfection, as we are united with Him in His righteousness. Therefore, our hope and assurance come from His completed work rather than our own efforts.