What is the significance of Jesus being our high priest?

The sermon elaborates on Christ's role as our great high priest, who stands in the gap for us. He is described in Hebrews 4:14 as having the authority to mediate for humanity, providing a means of reconciliation with God. By fulfilling the law and offering Himself as the sacrifice, Jesus allows believers to approach God not through their works but through the perfect righteousness He provides. This underscores the significance of His priesthood; it is through Him that we find holistic healing, both spiritually and physically, as seen in the story of the lepers in Luke 17.