Why is having Christ as our high priest important for Christians?

In Hebrews 10:21, Christ is presented as our high priest over the house of God, emphasizing His unique role compared to the Old Testament priests. While the Old Testament priests offered sacrifices that could not fully cleanse, Christ's singular sacrifice forever reconciles us to God. Moreover, He intercedes for us, providing strength against temptation and upholding our faith through His life. This role assures believers that they are constantly supported and empowered in their spiritual walk.