Genesis 8:12

8:12 He waited another seven days and sent the dove out again, but it did not return to him this time.

Genesis 31:23

31:23 So he took his relatives with him and pursued Jacob for seven days. He caught up with him in the hill country of Gilead.

Genesis 50:10

50:10 When they came to the threshing floor of Atad on the other side of the Jordan, they mourned there with very great and bitter sorrow. There Joseph observed a seven day period of mourning for his father.