1 Chronicles 10:12

all their fighting men took the bodies of Saul and his sons and brought them to Jabesh. They buried their bones under the great tree in Jabesh. Then they fasted seven days.

Genesis 35:8

Deborah died. She was the servant who cared for Rebekah from childhood. She was buried near Bethel, under the holy tree. They named it Allon-bacuth (weeping tree).

Genesis 50:10

They mourned loudly for a long time at the threshing place at Atad east of the Jordan. Joseph performed mourning ceremonies for seven days.

2 Samuel 3:35

David refused to eat anything the day of the funeral even though people tried to persuade him to eat. David vowed: May God strike me dead if I taste any food or anything else before the sun goes down.

2 Samuel 21:12-14

David took the bones of Saul and his son Jonathan from the citizens of Jabesh Gilead. They had stolen them from the public square of Beth Shean, where the Philistines hung them the day they killed Saul at Gilboa.

Treasury of Scripture Knowledge

Summary

They arose, all the valiant men, and took away the body of Saul, and the bodies of his sons, and brought them to Jabesh, and buried their bones under the oak in Jabesh, and fasted seven days.

Bible References

The oak

Genesis 35:8
Deborah died. She was the servant who cared for Rebekah from childhood. She was buried near Bethel, under the holy tree. They named it Allon-bacuth (weeping tree).
2 Samuel 21:12
David took the bones of Saul and his son Jonathan from the citizens of Jabesh Gilead. They had stolen them from the public square of Beth Shean, where the Philistines hung them the day they killed Saul at Gilboa.

Fasted

Genesis 50:10
They mourned loudly for a long time at the threshing place at Atad east of the Jordan. Joseph performed mourning ceremonies for seven days.
2 Samuel 3:35
David refused to eat anything the day of the funeral even though people tried to persuade him to eat. David vowed: May God strike me dead if I taste any food or anything else before the sun goes down.