What does the Bible say about the mercy of Christ?

The mercy of Christ is vividly illustrated in the accounts of the thieves crucified alongside Him. One of the thieves, recognizing his own unworthiness, asked Jesus to remember him when He comes into His kingdom. Jesus responded, 'Verily I say unto thee, Today shalt thou be with me in paradise' (Luke 23:43). This act of mercy shows that Christ's grace is extended not based on our actions or entitlements, but solely on His goodness. As seen in Romans 10:2-3, many seek to establish their own righteousness, but true righteousness comes only through faith in Christ.