How do we know Jesus fulfilled the law and the prophets?

In Matthew 5:17, Jesus directly addresses His mission, stating that He came not to abolish the law or the prophets, but to fulfill them. This fulfillment is essential as it confirms His identity as the Messiah foretold by all the prophets. Throughout His ministry, Jesus embodied the moral and ceremonial aspects of the law, perfectly obeying it in life and fulfilling its demands through His sacrificial death. The statements He made throughout the Sermon on the Mount further establish His role as the lawgiver and law-keeper, making clear that He would uphold the requirements of God's law both in His teachings and through His redemptive work.