2 Corinthians 11:2

Jealousy is a passion in a person which makes him impatient of any rival or partner in the thing or person beloved. The apostle tells them, that he was jealous over them, and thereby lets them know, that he so passionately loved them, as that he was not patient that any should pretend more kindness to them than he had for them; and withal, that he had some fear of them, lest they should be perverted and drawn away from the simplicity of the gospel; upon this account he calls it a godly jealousy. For (saith he) I have been instrumental to bring you to Christ; this he calls an espousing of them, the union of persons with Christ being expressed in Scripture under the notion of a marriage, Ephesians 5:23, &c. And he expresseth his earnest desire to present them to Christ uncorrupted, like a chaste virgin.