Deuteronomy 30:19-20

Let heaven and earth be my witnesses against you this day that I have put before you life and death, a blessing and a curse: so take life for yourselves and for your seed: In loving the Lord your God, hearing his voice and being true to him: for he is your life and by him will your days be long: so that you may go on living in the land which the Lord gave by an oath to your fathers, Abraham, Isaac and Jacob.