I do not find many new teachings in Jeremiah, because much of it is similar to IS, consisting of indictments of Israel’s sins, prophecies of coming judgment by being taken captive but eventual restoration (Jer. 29:10-14).
Jer. 4:4. “Circumcise your hearts”. This emphasis on the inner spiritual faith rather than on the outward physical circumstances is found in the writings of Paul, who even went so far as to say that spiritual faith is the essence of what it means to be Jewish or chosen by God. Rom. 2:28-29 says that “A man is not a Jew if he is only one outwardly, nor is circumcision merely outward and physical. No, a man is a Jew if he is one inwardly; and circumcision is circumcision of the heart, by the Spirit…”
Again in Rom. 3:29, Paul asks, “Is God the God of Jews only: Is he not the God of Gentiles too? Yes, of Gentiles too, since there is only one God, who will justify the circumcised by faith and the uncircumcised by that same faith.” And finally in Rom. 4:11-16 we find, “So then, [Abraham] is the father of all who believe… who also walk in the footsteps of the faith… He is the father of us all.” This teaching in JR & RM is foundational for the mystery of the Gospel of salvation for all humanity, both Jews and Gentiles, that Paul revealed in Eph. 2:11-3:13.
Jer. 31:31. Here we find mention of the coming new covenant (NT).
Jer. 4:4. “Circumcise your hearts”. This emphasis on the inner spiritual faith rather than on the outward physical circumstances is found in the writings of Paul, who even went so far as to say that spiritual faith is the essence of what it means to be Jewish or chosen by God. Rom. 2:28-29 says that “A man is not a Jew if he is only one outwardly, nor is circumcision merely outward and physical. No, a man is a Jew if he is one inwardly; and circumcision is circumcision of the heart, by the Spirit…”
Again in Rom. 3:29, Paul asks, “Is God the God of Jews only: Is he not the God of Gentiles too? Yes, of Gentiles too, since there is only one God, who will justify the circumcised by faith and the uncircumcised by that same faith.” And finally in Rom. 4:11-16 we find, “So then, [Abraham] is the father of all who believe… who also walk in the footsteps of the faith… He is the father of us all.” This teaching in JR & RM is foundational for the mystery of the Gospel of salvation for all humanity, both Jews and Gentiles, that Paul revealed in Eph. 2:11-3:13.
Jer. 31:31. Here we find mention of the coming new covenant (NT).