Acts 20:6

20:6 We sailed away from Philippi after the days of Unleavened Bread, and within five days we came to the others in Troas, where we stayed for seven days.

Genesis 7:4

7:4 For in seven days I will cause it to rain on the earth for forty days and forty nights, and I will wipe from the face of the ground every living thing that I have made.”

Genesis 8:10-12

8:10 He waited seven more days and then sent out the dove again from the ark. 8:11 When the dove returned to him in the evening, there was a freshly plucked olive leaf in its beak! Noah knew that the waters had receded from the earth. 8:12 He waited another seven days and sent the dove out again, but it did not return to him this time.