John Trapp on James 4:14

Verſe 14. Ye know not What, &c.] God delights to croſſe ſuch vain boaſters, and to confute their confidences, that speak and live, as if their lives were riveted upon eternity. They might eaſily obſerve that many things fall out betwixt the cup and the lip, betwixt the chinne and the challice. Ne glorietur igitur accinctus quaſi diſcinctus. Sell not the hide before ye have taken the beaſt. Who knows what a great bellied day may bring forth? Proverbs 27.1. Whiles a woman is yet with childe, none can tell what kinde of birth is will be, Luke 12.16, 17.

It is even a vapour] Thy breath is in thy noſtrils, ever ready to puff out: at the next puff of breath thou maiſt blow away thy life. Petrarch relates of a certain holy man,Lib 3. Memor. that being invited to a feaſt on the morrow, he anſwered, I have not had a morrow-day to diſpoſe of, this many a year: If you would any thing of me now, I am ready.