ISB ~ Galatians 3 v14

the blessing of Abraham:i.e., the Spirit, which is the messianic blessing revealed by the Prophets (Is 44:3; Ezek 36:26-27; Joel 2:28).

• The exact expression is from Gen 28:4, where Isaac confers the blessing of Abraham upon his son Jacob. This shows that Isaac alone was the bearer of the Abrahamic blessing, not Ishmael or any other of Abraham’s sons (Rom 9:7-9). Paul will capitalize on the significance of this in Gal 3:16 and 4:28.