'Shard' in the Bible

Job took a shard of broken pottery to scrape himself with while he was sitting among the ashes.

It shatters in pieces like a clay jar, so shattered to bits that none of it can be salvaged. Among its fragments one cannot find a shard large enough to scoop a hot coal from a fire or to skim off water from a cistern."

One who argues with his creator is in grave danger, one who is like a mere shard among the other shards on the ground! The clay should not say to the potter, "What in the world are you doing? Your work lacks skill!"