What does the Bible say about righteousness and assurance?

Biblical righteousness is grounded in the work of Christ, which establishes peace and assurance for those who believe. Isaiah 32:17 states, 'And the work of righteousness shall be peace; and the effect of righteousness, quietness and assurance forever.' This verse highlights the transformative power of Christ's work in providing peace and assurance to the elect. Righteousness is not something that can be achieved through our efforts, but is a gift from God through Jesus Christ, who fulfilled the law and took on our sin, thereby granting us safety and security in Him.