(And (remember) when We did deliver you from Pharaoh's folk), from Pharaoh and his people, (who were afflicting you with dreadful torment), and here Allah mentions the torment He sent on them: (slaying your sons) in their tender years (and sparing), using (your women) who were of age: (That was a tremendous trial from your Lord), a tremendous calamity from your Lord; and it is also said this means: a tremendous blessing.