NET
17 They court you eagerly, but for no good purpose; they want to exclude you, so that you would seek them eagerly.
Darby
17 They are not rightly zealous after you, but desire to shut you out [from us], that ye may be zealous after them.
KJV
17 They zealously affect you, [but] not well; yea, they would exclude you, that ye might affect them.