If anything, what this passage does is point to the fact that God does not change, because had the Lord not preserved the Ninevites, it would have been contrary to His character.
Ang itinuturo talaga ng mga talatang ito ay hindi nagbabago ang Diyos, dahil kung hindi Niya kinahabagan ang mga taga Nineveh, sasalungatin Niya ang kanyang pagiging mahabagin.