3. they . . . read in the book of the law--Their extraordinary zeal led them to continue this as before.
      one fourth part of the day--that is, for three hours, twelve hours being the acknowledged length of the Jewish day (Joh 11:9). This solemn diet of worship, which probably commenced at the morning sacrifice, was continued for six hours, that is, till the time of the evening sacrifice. The worship which they gave to the Lord their God, at this season of solemn national humiliation, consisted in acknowledging and adoring His great mercy in the forgiveness of their great and multiplied offenses, in delivering them from the merited judgments which they had already experienced or which they had reason to apprehend, in continuing amongst them the light and blessings of His word and worship, and in supplicating the extension of His grace and protection.

JFB.