Why is Christ described as our Sabbath?

The description of Christ as our Sabbath is rooted in Hebrews 4, where believers are called to enter into His rest. This rest is not a physical cessation from labor but a spiritual state in which Christians cease from relying on their own works for salvation. Jesus’ declaration, 'It is finished,' signifies the completion of redemptive work that provides believers with eternal rest. As believers in Jesus, we are invited to rest in His righteousness, which fulfills the requirements of the Law and grants us peace with God, redefining the essence of what the Sabbath truly represents.