John Trapp on Matthew 20:23

Verse 23. Ye shall drink indeed of my cup] Illud solum quod [illegible: 1 word] est, & limpidius. The Saints sip of the top of Gods cup: as for the dregs, the wicked shall wring them out, and drink them up. And be baptized, &c.] Or ducked, washed (not drowned) as St Paul was in the shipwrack; or as the baptized child, which shakes off the water, or is dryed after baptisme. Afflictions saith one, are called baptisme because they set Gods mark upon us (as baptisme doth) that we belong to God: This for outward afflictions. And for desertion, it is called Christs cup, because we are sure to pledge him in that too, and be conformed unto him, as was Iob, David, Heman, Psal. 88 &c. Grace is no target against affliction: but the best shall have terrours within, and troubles without, as sure as the coat is on their back, or the heart in their belly. Is not mine to give] i.e. It is no part of my present office: Or, I have no such commission from my father to give precedencies to all that affect them. Christ hereby seeks to raise up the low groveling spirits of his Apostles to things supernaturall, supernall.