John Trapp on Jeremiah 15:19

Ver. 19. Therefore thus ſaith the Lord] Or, Notwithſtanding, mans perverſneſſe breaketh not off the courſe of God goodneſſe.

If thou return] If thou caſt out this devil of diſcontent: and (accounting diſtruſt worſe then diſtreſſe) apply thy ſelf chearfully and conſtantly to the work of the Miniſtry,Hic vides non praeſcribi gratiae Dei mentes & annos. I will continue and confirm thee in thine office, notwithſtanding thy preſent frailties and failings. So our Saviour, preſently upon their repentance for their ſhameful forſaking him at his apprehenſion, reſtored his Diſciples to their Apoſtolical function, Joh. 20.21, 22, 23.

Probe vir, hoc nihil ad te, dixi Zwinglius cum in vitia acriter inveheretur. And if thou take forth the pretious from the vile] i. e. The gracious from the vicious, preaching comfort to thoſe, and terrour to theſe; not giving, as he in the Fable did, ſtraw to the Dog, and a bone to the Aſſe, but to every one his proper portion, without fear or flattery.

Thou ſhalt be as my mouth] Speaking as a Prophet of mine, and as I my ſelf would do, if in thy place.

Let them return to thee] i. e. Conform to thee, but do not thou chime in with them as the falſe-prophets do.