cisterns study

Prov 5:15
Drink water from your own cistern,
flowing water from your own well.

Jer 2:13
for My people have committed 2 evils:
they have forsaken Me the fountain of living waters,
and hewed out cisterns for themselves, broken cisterns that can hold no water. 

Jer 14:3
Her nobles send their servants for water;
they come to the cisterns;
the find no water;
they return with their vessels empty;
they are ashamed and confounded and cover their heads.