2 Samuel 12:17

12:17 The elders of his house stood over him and tried to lift him from the ground, but he was unwilling, and refused to eat food with them.

Job 16:15

16:15 I have sewed sackcloth on my skin,

and buried my horn in the dust;

22:12 At that time the sovereign master, the Lord who commands armies, called for weeping and mourning,

for shaved heads and sackcloth.

58:5 Is this really the kind of fasting I want?

Do I want a day when people merely humble themselves,

bowing their heads like a reed

and stretching out on sackcloth and ashes?

Is this really what you call a fast,

a day that is pleasing to the Lord?

58:6 No, this is the kind of fast I want.

I want you to remove the sinful chains,

to tear away the ropes of the burdensome yoke,

to set free the oppressed,

and to break every burdensome yoke.

58:7 I want you to share your food with the hungry

and to provide shelter for homeless, oppressed people.

When you see someone naked, clothe him!

Don’t turn your back on your own flesh and blood!

58:8 Then your light will shine like the sunrise;

your restoration will quickly arrive;

your godly behavior will go before you,

and the Lord’s splendor will be your rear guard.

1:13 Get dressed and lament, you priests!

Wail, you who minister at the altar!

Come, spend the night in sackcloth, you servants of my God,

because no one brings grain offerings or drink offerings

to the temple of your God anymore.