To introduce four things that are never satisfied, Agur described the leech; a blood-sucking worm. It feeds through two suckers, one at each end of its body, thus the depiction of "two daughters" clamoring for blood. Horse leeches live in well water and spring water. As animals and humans drink, tiny leeches enter their mouths and attach themselves inside the throat or similar places. Feeding on their host's blood, they grow rapidly and can cause bleeding, obstruction, and even death. The leech presents a vivid picture of human parasites. They enrich themselves by draining others, and giving nothing but trouble in return. Like the leech, the following four things are never satisfied:
The Grave or Sheol: It takes countless souls every day but is never full. "Therefore hell hath enlarged herself, and opened her mouth without measure: and their glory, and their multitude, and their pomp, and he that rejoiceth, shall descend into it" (Isaiah 5:14).
The Barren Womb: The effects of sin upon humanity rob some women of the ability to conceive. It is heartbreaking for a woman yearning to have a child to be unable to conceive. She is never satisfied and tries every method possible to become pregnant. God's promise and power can break the curse of a barren womb (Deuteronomy 7:13). Whoever follows Christ has God's blessing, including the ability to conceive. My husband and I have seen many women able to become pregnant after being prayed for.
The Earth: It is never satisfied with water. No matter how much rain falls, the earth will become dry and need more. Drought is a curse. Israel was warned that if they turned from the living God to idols, the earth would suffer for it. (Deuteronomy 11:13-17).
Fire: Its very life depends upon consuming everything that it touches. It is devastating to view the aftermath of a fire. At the time of this writing, Arizona has endured its worst drought in over a hundred years, and many fires have ravaged the land. When driving by these areas it is sad to see mile after mile of charred timber that had once been a green forest. It is far sadder, however, to see people's lives ravaged and destroyed by sin. Like fire, sin is never satisfied, but consumes more and more of a person's soul and life.
God has promised to provide for all our needs. He entreats us to trust in Him. "Let your character or moral disposition be free from love of money [including greed, avarice, lust, and craving for earthly possessions] and be satisfied with your present circumstances and with what you have; for He [God] Himself has said, I will not in any way fail you nor give you up nor leave you without support. [I will] not, [I will] not, [I will] not in any degree leave you helpless nor forsake nor let [you] down (relax My hold on you)! [Assuredly not!]" (Hebrews 13:5, AMP).