Adam Clarke on Luke 16:16

The law and the prophets were until John - The law and the prophets continued to be the sole teachers till John came, who first began to proclaim the glad tidings of the kingdom of God: and now, he who wishes to be made a partaker of the blessings of that kingdom must rush speedily into it; as there will be but a short time before an utter destruction shall fall upon this ungodly race. They who wish to be saved must imitate those who take a city by storm - rush into it, without delay, as the Romans are about to do into Jerusalem. See also on Mat 11:12 (note).