Musar על ברכות 70:2

The linking of G–d and Israel in that Midrash is due to the fact that such theft is known in the Celestial Spheres. First man (whose father and mother was literally G–d Himself), had committed this crime of theft. The close connection in the Heavenly Regions between כנסת ישראל, and G–d is well known. It is there that Adam disturbed the equilibrium with his sin. This is why the kidnapper, גונב נפש, is mentioned in the Torah in connection with cursing or hitting mother or father.