It was in my mouth sweet as honey - There was in it some pleasing, some unpleasing, intelligence. I read of the consolations and protection of the true worshippers of God, and did rejoice; I read of the persecutions of the Church, and was distressed.
And as soon as I had eaten it, my belly was bitter - The effect immediately followed: that is, as soon as he was made acquainted with the contents of the book, either, as above explained, requiring him to deliver some message of woe and wrath which it would be painful to deliver, or that the consequence of receiving it was to bring on bitter persecutions and trials.