Enmity

Easton's Bible Dictionary

Deep-rooted hatred. “I will put enmity between thee and the woman, between thy seed and her seed” (Gen 3:15). The friendship of the world is “enmity with God” (Jas 4:4; 1 John 2:15, 16). The “carnal mind” is “enmity against God” (Rom 8:7). By the abrogation of the Mosaic institutes the “enmity” between Jew and Gentile is removed. They are reconciled, are “made one” (Eph 2:15, 16).

International Standard Bible Encyclopedia

en'-mi-ti ('ebhah; echthra):

"Enmity" (hate) occurs as the translation of 'ebhah in Gen 3:15, "I will put enmity between thee and the woman, and between thy seed and her seed," and in Num 35:21; Num 35:22, where the absence of enmity on the part of the man-slayer modifies the judgment to be passed on him.

In the New Testament "enmity" is the translation of echthra: Luke 23:12; Rom 8:7, "The mind of the flesh is enmity against God." Jas 4:4, "The friendship of the world is enmity with God" (because "the world" is preferred to God); in Eph 2:15; Eph 2:16, Christ is said to have "abolished in his flesh the enmity," by His cross to have "slain the enmity," that is, the opposition between Jew and Gentile, creating in Himself "one new man, (so) making peace."