John Trapp on Job 33:19

Verſe 19 He is chaſtened alſo with pain upon his bed] He is chaſtened or chidden; for all diſeaſes are vocal: they are real reprehenſions.Coarguitur dolore. As God is ſaid to hold his peace, when he puniſheth not, Pſal. 50.21. Iſai. 42.14. ſo to preach and reprove when he doth, Iſai. 26.9. and 28.19. Thus God by chaſtening David, inſtructed him every morning, Pſal. 73.14. His reines alſo taught him in the night ſeaſon. Sickneſſe (ſaith one) is the ſhop of vertue. It is morum diſciplina, felicit at is meditatorium, voluntatis Dei Schola; ſaith another. King Alfred found it ſo, and therefore beſought God, to ſend him ever and anon ſome fit of ſickneſſe; for that (ſaith he) I ever find my ſelf beſt when worſt, beſt in ſoul, when worſt in body, the ſickneſs of this is a medicine to that.

And the multitude of his bones with ſtrong pain] Some read it, Et lis eſt [illegible: 1 letter]ſſium ejus vehemens, his bones rattle in his skin, as we ſay. Confer Pſal. 38.4. He is all over ſo ill at eaſe, that live he would not, dye he cannot; his pain piercing even to his very bones, and drinking up his marrow, as Jobs did: all this Diſcouſe being exemplified in him, ſave that we finde not that he kept his bed.