THE FULL ARTICLE — from the International Standard Bible Encyclopedia

The International Standard Bible Encyclopedia (1915), general editor James Orr — public domain, printed whole.

kuv'-et ('awah; zeloo, "to desire earnestly," "to set the heart and mind upon anything"): Used in two senses: good, simply to desire earnestly but legitimately. e.g. the King James Version 1Co 12:31; 14:39; bad, to desire unlawfully, or to secure illegitimately (batsa`; epithumeo, Ro 7:7; 13:9, etc.); hence, called "lust" (Mt 5:28; 1Co 10:6), "concupiscence" (the King James Version Ro 7:8; Col 3:5).