Why is Jesus's humanity important in relation to His work?

The significance of Jesus's humanity lies in His ability to fully represent humanity before God. As noted in the sermon, He is the 'man Christ Jesus' who experienced life as we do, yet without sin. This reality enables Him to empathize with our weaknesses, as He was 'touched with the feeling of our infirmities' (Hebrews 4:15). Furthermore, His human nature was necessary for Him to serve as a substitute, taking upon Himself the sins of His people, thus fulfilling the requirements of the law while providing a legitimate basis for our justification before God. His dual nature—fully God and fully man—illustrates the divine purpose of salvation.