How do we know that Jesus fulfills the rest mentioned in the Bible?

In Hebrews 4, the author warns that entering into God’s rest is a promise linked to faith in Christ. The Old Testament Sabbath and feasts were distinct symbols provided by God to lead His people to ultimate faith in Jesus as the true rest. The rest from works is made available through believing in His completed work, affirming that the law served its purpose by pointing to God’s redemptive plan through Christ. Thus, the rest promised is only found in faith in Jesus, the true fulfillment of these ancient practices.