moses told his people remember the favors that god granted you when he saved you from the people of the pharaoh who had punished you in the worst manner by murdering your sons and keeping your women alive. it was a great trial for you from your lord.
وإذ قال موسى لقومه اذكروا نعمة الله عليكم إذ أنجاكم من آل فرعون يسومونكم سوء العذاب ويذبحون أبناءكم ويستحيون نساءكم وفي ذلكم بلاء من ربكم عظيم