Isaiah 7:12

I will not ask: this refusal proceeded not from the strength of his faith, but from his contempt of God, and total distrust and disregard of his word, and inward resolution to take another course; as is manifest both from the following words, and from the history of Ahaz, 2Ch 18. Neither will I tempt the Lord; either,

1. By asking a sign, as if he questioned the truth of his word: so this was deep hypocrisy. Or,

2. By neglecting any means necessary for my preservation, which were indeed a tempting of God. And therefore I shall not sit still and rely upon God till I be destroyed, which will be the effect of thy counsel; but I shall do as becometh a wise king, seek for succour from potent allies, such as the Assyrian is. So this is flat rebellion against God.