For years, I have taught that the covenantal relationship – I will be your God, and you will be my people – is a central theme of Scripture. Looking back through some notes, I found the following from Herman Bavinck’s Our Reasonable Faith.
The Bible begins with the account that God created man after His own image and likeness, in order that he should know God his Creator aright, should love Him with all his heart, and should live with Him in eternal blessedness. And the Bible ends with the description of the new Jerusalem, whose inhabitants shall see God face to face and shall have His name upon their foreheads.
Between these two moments lies the revelation of God in all its length and breadth. As its content this revelation has the one, great, comprehensive promise of the covenant of grace: I will be a God unto thee, and ye shall be my people. And as its mid-point and its high-point this revelation has its Immanuel, God-with-us. For the promise and its fulfillment go hand in hand. (p. 24)