What does fulfilling all righteousness mean?

In Matthew 3:15, when Jesus states that it is necessary to 'fulfill all righteousness', He is expressing His intent to completely and perfectly obey God’s law. This fulfillment is crucial for the redemptive work He was sent to accomplish. It signifies that Jesus, as our Savior, must meet every requirement of the law in His life and ultimately take upon Himself the sins of His people through His atoning death. This act of fulfilling all righteousness is foundational, demonstrating that righteousness is not obtained through human effort but entirely through Christ's obedient work, culminating in His sacrificial death, which secures salvation for believers.