in vain

Proverbs 7:23
until an arrow pierces his liver, like a bird darting into a snare--not knowing it will cost him his life.

Job 35:11
who teaches us more than the beasts of the earth and makes us wiser than the birds of the air?'

Isaiah 1:3
The ox knows its owner, and the donkey its master's manger, but Israel does not know; My people do not understand."

Jeremiah 8:7
Even the stork in the sky knows her appointed seasons. The turtledove, the swift, and the thrush observe their time of migration, but My people do not know the requirements of the LORD.