What does the Bible say about everlasting covenant?

The concept of an everlasting covenant in the Bible is profoundly significant, as it represents God's unchanging promise to His people. In 2 Samuel 23:5, David reflects on this covenant, acknowledging that despite his imperfections and the failures of his house, God has made a promise that is assured and secure. This covenant assures believers of God's faithfulness, emphasizing that salvation and grace come not from our merits, but from God's mercy. The Scripture reveals that God, throughout history, establishes covenants with His people that ultimately point to the Messiah, Jesus Christ, through whom the ultimate fulfillment of God's promises is realized.