وَإِذۡ
تَأَذَّنَ
رَبُّكُمۡ
لَئِن
شَكَرۡتُمۡ
لَأَزِيدَنَّكُمۡۖ
وَلَئِن
كَفَرۡتُمۡ
إِنَّ
عَذَابِي
لَشَدِيدٞ
٧
当时，你们的主曾宣布说：如果你们感谢，我誓必对你们恩上加恩；如果你们忘恩负义，那末，我的刑罚确是严厉的。
Read Tafsir
Ibn Kathir (Abridged)
Allah states that Musa reminded his people about Allah's annals anddays and of Allah's favors and bounties that He bestowed on them,when He saved them from Fir` awn and his people and the tormentand disgrace they used to exert on them.
They used to slaughter whomever they could find among their sons
…