It is thus Rav Yoseph taught what is meant when it is written in Isaiah
xii. I, "I will praise Thee, O Lord, because Thou wast angry with me:
Thine anger will depart and Thou wilt comfort me." "The text applies,"
he says, "to two men who were going abroad on a mercantile enterprise,
one of whom, having had a thorn run into his foot, had to forego his
intended journey, and began in consequence to utter reproaches and
blaspheme. Having afterward learned that the ship in which his companion
had sailed had sunk to the bottom of the sea, he confessed his
shortsightedness and praised God for His mercy."
THE TALMUD, _Niddah_, fol. 31, col. 1.