'Thought' in the Bible

Whenever a round of banqueting was over, Job would send for his children and purify them, rising early in the morning to offer burnt offerings for all of them. For Job thought: Perhaps my children have sinned, having cursed God in their hearts. This was Job’s regular practice.

So I thought: I will die in my own nestand multiply my days as the sand.

I thought that age should speakand maturity should teach wisdom.