Reference for Yoma 149:4

תניא אמר רבי יוסי בוא וראה שלא כמדת הקב"ה מדת בשר ודם מדת בשר ודם מקניט את חבירו יורד עמו לחייו אבל הקב"ה אינו כן קלל את הנחש עולה לגג מזונותיו עמו יורד למטה מזונותיו עמו

If one of flesh and blood is angry with his neighbour he persecutes him as far as depriving him of his livelihood, but it is different with the Holy One, blessed be He. Although He cursed the serpent, yet when he goes up to the roof, there is his food; if he goes down, there is his food. He cursed Canaan:<span class="x" onmousemove="('comment',' Gen. IX, 26. God did not really curse him, it was Noah who did so. But by decreeing that Canaan be a slave, He seems to confirm Noah's curse.');">⁷</span>

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