Now we, brethren, as Isaac was, are children of promise.
There is a dangerous myth nowadays that hampers many believers’ understanding, growth and victory. It’s the notion that the Old Testament (OT) is irrelevant to new covenant saints, while only the New Testament (NT) is relevant.
Even our use of the term “old” in reference to the 39 books of the OT can be misleading. No wonder others now prefer to refer to the OT as the Hebrew Bible, in contrast to the last 27 books of the NT, which were written in Greek.
In fact, when Paul asserted that all Scripture is inspired of God (2 Tim 3:16), he not only had the NT in mind, but the OT. The Gospel is contained in both testaments of the Bible. Beloved, it’s important for us to understand that in the OT we have the Gospel promised and foretold–the Gospel in seed form. In the New Testament that seed comes into full flower, as the promises are kept and the prophecies are fulfilled. There is a remarkable continuity between the Old and the New Testaments.
So we need to reread the OT from the perspective of promise and fulfilment. We will be blessed beyond measure. For there are literally thousands of promises God makes in the Hebrew Bible which are fulfilled in the New Testament, for our edification.
Not only is our God a speaking-God, He is a promise-making as well as a promise-keeping God. And we are children of promise!