They willfully tested God by demanding the food they craved.

1 Corinthians 10:9
We should not test Christ, as some of them did, and were killed by snakes.

Exodus 17:2
So the people contended with Moses, "Give us water to drink." "Why do you contend with me?" Moses replied. "Why do you test the LORD?"

Exodus 17:6
Behold, I will stand there before you by the rock at Horeb. And when you strike the rock, water will come out of it for the people to drink." So Moses did this in the sight of the elders of Israel.

Numbers 11:4
Meanwhile, the rabble among them had a strong craving for other food, and again the Israelites wept and said, "Who will feed us meat?

Deuteronomy 6:16
Do not test the LORD your God as you tested Him at Massah.

Psalm 78:41
Again and again they tested God and provoked the Holy One of Israel.

Psalm 78:56
But they tested and disobeyed God Most High, for they did not keep His decrees.

Psalm 95:9
where your fathers tested and tried Me, though they had seen My work.

Psalm 105:40
They asked, and He brought quail and satisfied them with the bread of heaven.

Psalm 106:14
They craved intensely in the wilderness and tested God in the desert.

And they tempted God in their heart by asking meat for their lust.