Cornelius a Lapide

Doth a candle come in, i.e., is it brought into a house, to be put under a bushel or under a bed f That it should be hidden under a vessel ? No ! but that it should be exposed publicly, and give light to all. Christ signified by this parable that it was not His will that the mysteries of this parable and the other doctrines of the Gospel should be concealed and hidden, but that His disciples should unfold them in their time, and communicate to others who at that time were not able to receive them. It was His will that they should publish and preach them openly. This is plain from what follows