Bede

And they drew lots between them, and so forth. Neither because of this example, nor because the prophet Jonah was found out by lot, are we to believe indiscriminately in lots, “since the prerogative of individuals,” as Jerome says, can in no way “make a general law.” For in that instance pagan men were compelled by a storm to seek by lot the source of their danger. Matthias was chosen by lot so that their choice of the apostle would not appear to be out of harmony with the command of the old law, where it was ordered that the high priest be sought.