1) Christian term 
The katechon (from Greek: τὸ κατέχον, `that what withholds`, or ὁ κατέχων, `the one who withholds`) is a biblical concept which has subsequently developed into a notion of political philosophy. The term is found in {bibleverse|2|Thessalonians|2:6-7} in an eschatological context: Christians must not behave as if the Day of th...