Cross reference
1 Samuel 17:16
16 And the Philistine came near every morning and evening for forty days.
Matthew 4:2
2 And after going without food for forty days and forty nights, he was in need of it.
Luke 4:2
2 For forty days, being tested by the Evil One. And he had no food in those days; and when they came to an end, he was in need of food.