Robert Traill (The Lord's Prayer, John 17:24), Works 2:41-42:
It is called the blood of the everlasting covenant, Heb. 13:20. Christ’s blood was not only redeeming and purchasing blood, a just and full price both for the heirs and for the inheritance; but it was sealing blood, and confirming of that covenant, in and by which the inheritance was secured to the heirs, and the heirs secured for the inheritance. Alas! many have the Bible, and use it but little; and many use it amiss, because they know not its right name. It is well and warrantably, from its contents, called, in its title page, in all languages and translations, The Old and New Testament of our Lord and Saviour Jesus Christ. But how few, in reading this title, mind the use and virtue of the blood of Jesus, which turned the covenant of God’s grace into the testament of Christ, and thereby sealed and confirmed all the good words and good things in that covenant?
It is called the blood of the everlasting covenant, Heb. 13:20. Christ’s blood was not only redeeming and purchasing blood, a just and full price both for the heirs and for the inheritance; but it was sealing blood, and confirming of that covenant, in and by which the inheritance was secured to the heirs, and the heirs secured for the inheritance. Alas! many have the Bible, and use it but little; and many use it amiss, because they know not its right name. It is well and warrantably, from its contents, called, in its title page, in all languages and translations, The Old and New Testament of our Lord and Saviour Jesus Christ. But how few, in reading this title, mind the use and virtue of the blood of Jesus, which turned the covenant of God’s grace into the testament of Christ, and thereby sealed and confirmed all the good words and good things in that covenant?