Jeremiah 4:4 → Deuteronomy 6:5

Jeremiah's summons — "Circumcise yourselves to the LORD, and remove the foreskins of your hearts" — picks up the heart-language that Deuteronomy itself attached to the Shema. Deut 6:5 commands love "with all your heart"; Deut 10:16 and 30:6 diagnose that the obstacle is an uncircumcised heart and promise its circumcision. Jeremiah stands in this line: the love the Shema demands is impossible while the heart is closed, so the prophet presses Judah toward the inward reality the outward sign of circumcision always signified. The verse hovers between command (4:4, "circumcise yourselves") and the deeper recognition, voiced later in Jeremiah, that only God can give the new heart (24:7; 31:33). The connection traces the Shema's "with all your heart" from Mosaic imperative through prophetic intensification toward the new-covenant promise. The telos: the heart that loves God with all is not self-generated by religious resolve but received as gift — circumcised by God Himself through the Spirit in the new covenant inaugurated by Christ (Rom 2:29; Phil 3:3), so that the Shema is finally kept from the inside out, in joy rather than dread.