'Tempt the Lord' in the Bible

Therefore the people quarreled with Moses and said, “Give us water so we may [have something to] drink.” And Moses said to them, “Why do you quarrel with me? Why do you tempt the Lord and try His patience?”

But Ahaz said, “I will not ask, nor will I test the Lord!”

We must not tempt the Lord [that is, test His patience, question His purpose or exploit His goodness], as some of them did—and they were killed by serpents.