Bereshit: A reminder of our control over our destiny
Hashem begins by asking Cain why he is angry and sad and continues with the following verse: (Genesis 4:7) הֲל֤וֹא אִם־תֵּיטִיב֙ שְׂאֵ֔ת וְאִם֙ לֹ֣א תֵיטִ֔יב לַפֶּ֖תַח חַטָּ֣את רֹבֵ֑ץ וְאֵלֶ֨יךָ֙ תּ