How do we know the doctrine of God's chastening is true?

The doctrine of God's chastening stems from His love for His children, as noted in Hebrews 12:6, where Scripture affirms that the Lord disciplines those He loves. This chastening serves to draw the elect closer to Christ, helping them recognize their sinfulness and need for redemption. Throughout biblical history, individuals like Moses understood their sinful nature under the law and thus experienced the severity of God's discipline. However, this severity leads to the realization of God's grace when one turns to Christ, who offers forgiveness and restoration. As God's children encounter trials and pangs attributed to the law, they subsequently come to appreciate the gift of His loving-kindness and faithfulness through Christ.