Against

a-genst' (kata; enantion; pros): Preposition expressing contrast. When used of direction, equivalent to "toward" (Matt 10:35; Matt 12:14, etc.); when of position, meaning "opposite," "facing," "in front of" (1 Kgs 7:5; Gen 15:10; Rom 8:31); when of action, "opposed to" (Matt 5:11; Matt 26:59; 1 Cor 4:6); "in resistance to" (Heb 12:4); "provision for" (Greek eis, literally, "unto, toward" (1 Tim 6:19)). Sometimes also applied to what breaks an established order as "customs" (Acts 28:17), "nature" (Rom 1:26). Peculiar shades of meaning may be traced by careful examination of the variety of prepositions in Hebrew and Greek employed in the Scriptures, that are translated into English by this one word.

H. E. Jacobs