מדרש על סנהדרין 179:10

(Devarim 13:3) "And there shall materialize the sign and the wonder of which he spoke to you, etc.": R. Yossi Haglili said: See how far Scripture penetrated to the ends of the psyche of the idolators and gave them dominion — Even if they cause sun and moon, stars and constellation, to stand still, pay them no heed. Why? (Ibid. 4) "For the L-rd your G-d is trying you to know whether you love the L-rd your G-d, etc."