How can we understand the concept of an everlasting covenant?

The concept of an everlasting covenant is pivotal in understanding God's relationship with His people. It refers to a commitment that transcends chronology, having no starting point and no termination. God’s covenant, as mentioned in 2 Samuel 23:5, is described as 'ordered in all things and sure,' which provides believers with the confidence that it is secure and unalterable. This eternal covenant encompasses all aspects of salvation, as it is rooted in God's sovereign decree and executed through Christ's fulfillment of the law on behalf of His people, assuring them of their eternal security and relationship with Him.