'Instinctively' in the Bible

“The ox [instinctively] knows its owner,And the donkey its master’s feeding trough,But Israel does not know [Me as Lord],My people do not understand.”

“Even the stork in the skyKnows her seasons [of migration],And the turtledove, the swallow and the craneObserve the time of their return.But My people do not knowThe law of the Lord.

So, when Gentiles, who do not have the law, instinctively do what the law demands, they are a law to themselves even though they do not have the law.

But these men do not understand the things they slander, and they are being destroyed by the very things that, like irrational animals, they instinctively comprehend.