Genesis 1:5

1:5 God called the light “day” and the darkness “night.” There was evening, and there was morning, marking the first day.

Genesis 39:10

39:10 Even though she continued to speak to Joseph day after day, he did not respond to her invitation to have sex with her.

Genesis 50:3

50:3 They took forty days, for that is the full time needed for embalming. The Egyptians mourned for him seventy days.