The Epistles of Paul - Galatians Part 5: Sons of the Promise
Perhaps after his epistle to the Romans, Paul's epistles to the Galatians is a paramount exhibition of the practical conception of covenant theology. But this is only apparent when the individual sentences of the epistle are read and interpreted in their own context, rather than being isolated and their interpretations perverted as the commentators of the denominational sects are accustomed to doing.
In Galatians chapters 1 and 2 Paul addressed the fallacy that one's righteousness could be obtained through the works of the law, by clinging to ordinances in ceremonies and rituals, which certainly is contrary to Scripture since the Scripture itself professes that no living man can be justified in the sight of Yahweh God: for all men are sinners and fall short of the glory of God. From Romans chapter 9 it is evident that there were Edomites in Judaea who claimed to be of Israel and who were seeking their righteousness by the law, but there were also many Israelites remaining in Judaea who were persuaded by them, which we can tell from Acts chapter 21, and it is these Judaizers whom Paul is addressing here in the bigger picture which he began to explain in those same opening chapters of Galatians. Then in Galatians chapter 3 Paul explained that in spite of the law, righteousness is inferred by God through the promises to Abraham, but that those promises to Abraham were not passed on to all of Abraham's descendants. Rather they were passed on only to those which had been anointed by God, which are the children of Israel. The children of Jacob-Israel are the anointed seed out of all of Abraham's seeds, or the various races which could claim descent from Abraham, and therefore the children of Israel are the exclusive heirs of the covenant, in spite of whether the Edomites or Ishmaelites would keep the law.
However just because as we read this epistle the chapter number now changes, that does not mean that the subject of Paul's discourse is changing, and in this chapter it becomes absolutely manifest that Paul has indeed been teaching what we may call Covenant Theology, which is the knowledge that the promises to Abraham which in the New Covenant are fulfilled in Christ, are fulfilled along the same lines as the promises to Abraham fulfilled in Kingdom Israel under the Old Covenant: they are promises made to Abraham concerning his seed, or offspring, and they are eternal. Each of these Covenants represents the fulfillment by Yahweh God of the promises to Abraham in their respective ages. The promises of God do not change, and were upheld in spite of the fact that the children of Israel had failed to keep the Levitical covenant, which, as we learn from Paul here, was supplementary to the promises to Abraham. As Paul had explained, and as we had seen in the Psalms and in the records of the promises themselves while discussing Galatians chapter 3, the promises to Abraham cannot fail, and they are without condition. Further, as Paul had said in Romans chapter 4, the promise to Abraham is assured to all of the offspring of Abraham, which are accounted through Jacob-Israel, because the offspring are accounted according to the promise, as Paul had said, “thus your offspring will be”.