John Trapp on John 15:2

Verſe 2. Every branch in me] That thinks himſelf to be in me, and is ſo thought to be by others, but proves not to be ſo. Theſe are ſaid to deny the Lord that bought them, to trample on the bloud of the Covenant, 2 Pet. 2.1. Heb. 10 20. 2 Pet. 2.28. wherewith they were ſanctified, to wallow in the mire from which they had been waſhed, &c. So here, to be branches in Chriſt, and yet unfruitfull. Not that they ever were in Chriſt, but ſeemed to be ſo: as a pole fixed in the earth, but not rooted: as a rotten leg cleaves to the body, but is no part of it: or, as wens and ulcers, which are taken away without loſſe to it.

He purgeth it.] [non-Latin text not transcribed], Am[illegible: 1 letter]utat. putat Of all poſſeſſions, ſaith Cato, none requires more pains about it, then that of vineyards. Corn comes up and grows without the husbandmans care, Mark 4.27. he knows not how. But vines muſt be dreſſed, ſupported, ſheltered, pruned every day almoſt: lopt they muſt be ever the anon, leſt the juyce be ſpent in leaves. And if it be painfull to bleed, 'tis worſe to wither. Better be pruned to grow, then cut up to burn.