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 1:12

They grieved and mourned and fasted until evening for Saul and Jonathan and for Israel, the people of Jehovah, because so many had been killed in battle.

2 Samuel 12:17

The elders in his palace stood beside him to raise him up from the ground. But he was unwilling and he would not eat with them.

Ruth 1:17

Wherever you die, I will die. That is where I will be buried. May Jehovah's worst punishment come upon me if I let anything but death separate me from you!

Jeremiah 16:7

Men will not break bread in mourning for them in order to comfort anyone for the dead. Nor will they give them a cup of consolation to drink for anyone's father or mother.

Judges 20:26

The people of Israel went up to Bethel and mourned. They sat there in Jehovah's presence and fasted until evening. They offered fellowship sacrifices and burned some sacrifices whole in the presence of Jehovah.

1 Samuel 3:17

What did Jehovah tell you? He asked. Please do not hide it from me. May God strike you dead if you hide anything he told you from me.

2 Samuel 3:9

May God deal with me harshly if I do not help David get all that Jehovah promised him when he said:

Ezekiel 24:17

Groan silently; make no mourning for the dead. Bind on your turban and put your shoes on your feet. Do not cover your mustache and do not eat the bread of men.

Ezekiel 24:22

You will do as I have done. You will not cover your mustache and you will not eat the bread of men.

Treasury of Scripture Knowledge

Summary

And when all the people came to cause David to eat meat while it was yet day, David sware, saying, So do God to me, and more also, if I taste bread, or ought else, till the sun be down.

Bible References

Cause

2 Samuel 12:17
The elders in his palace stood beside him to raise him up from the ground. But he was unwilling and he would not eat with them.
Jeremiah 16:7
Men will not break bread in mourning for them in order to comfort anyone for the dead. Nor will they give them a cup of consolation to drink for anyone's father or mother.
Ezekiel 24:17
Groan silently; make no mourning for the dead. Bind on your turban and put your shoes on your feet. Do not cover your mustache and do not eat the bread of men.

So do

2 Samuel 3:9
May God deal with me harshly if I do not help David get all that Jehovah promised him when he said:
Ruth 1:17
Wherever you die, I will die. That is where I will be buried. May Jehovah's worst punishment come upon me if I let anything but death separate me from you!

Till the

2 Samuel 1:12
They grieved and mourned and fasted until evening for Saul and Jonathan and for Israel, the people of Jehovah, because so many had been killed in battle.
Judges 20:26
The people of Israel went up to Bethel and mourned. They sat there in Jehovah's presence and fasted until evening. They offered fellowship sacrifices and burned some sacrifices whole in the presence of Jehovah.