Translation:

1. We sent Noah to his People (with the Command): "Do thou warn thy people before there comes to them a grievous Penalty."

Notes (Tafseer)

5705. Noah's mission is referred to in many places. See specially xi. 25-49 and notes. His contemporaries had completely abandoned the moral law. A purge had to be made, and the great Flood made it. This gives a new starting point in history for Noah's People,-i.e., for the remnant saved in the Ark.