What does the Bible say about having a good conscience?

In 1 Peter 3:21, it states that baptism symbolizes the answer of a good conscience toward God through the resurrection of Jesus Christ. A good conscience implies that a believer, despite their sinful nature, can stand before God without guilt due to the atoning work of Christ. This is further supported in Hebrews 9:14, which teaches that the blood of Christ purges our conscience from dead works, allowing us to serve the living God knowing we are cleansed from sin. Therefore, through faith in Jesus, who bore our sins in His body, we can achieve a good conscience before God.