Yet forty days, &c.— In most of the threats of God, there is always a condition expressed or understood. It is expressed Jeremiah 18:8. It is understood in the passage before us.
Related Commentaries of Jonah 3:4
Jonah 3:4
4 And Jonah began to enter into the city a day's journey, and he cried, and said, Yet forty days, and Nineveh shall be overthrown.