After this opened Job his mouth, and cursed his day. And Job spake, and said, let the day perish wherein I was born, and the night in which it was said, there is a man child conceived. Let that day be darkness; let not God regard it from above, neither let the light shine upon it (Job 3:1-4).
Job was a man who had lived in great affluence because he was richly blessed of God. But imagine the terrible words he uttered when he got into trouble! This is just like some folks; when they face a little challenge, they forget so quickly all the good things God has done for them. Not only do they wallow in self-pity, they also love to be pitied by everybody.
If you read the whole chapter, it's full of lamentation and self - pity. This is the result of fear and lack of understanding of the nature of God. Job wished to die. He had given up. But the Lord was merciful and restored him. We must learn to not give up in times of adversity.
The man of fiat is the man with a righteous heart that is fixed on God and trusting in Him. He doesn't give consideration to anything aside God's word. He lives a consistent and persistent life and always has a confession on his lips. Notice, the faithless also confesses, but he speaks the wrong things. Job opened his mouth and cursed his day. The man of faith opens his mouth to bless his day. He awakened to what God's word says and doesn't give up until he sees it manifested in his life.
Faith that possesses doesn't speak carelessly. Therefore no matter what the case may be let the life you live be the life of faith. Refuse to cower or give up in the face of adversity; keep talking your faith, for always wins.