Mishnayos Sotah Perek 3 Mishnah 5

Rabbi Shimon says: Merit does not delay the punishment of the bitter water of a sota, and if you say that merit does delay the punishment of the water that causes the curse, as stated earlier by the Rabbis (20a), you weaken [madhe] the power of the bitter water before all the women who drink the water, who will no longer be afraid of it, as they will rely on their merit to save them. And you defame the untainted women who drank the water and survived, as people say: They are defiled but it is their merit that delayed the punishment for them. Rabbi Yehuda HaNasi says: Merit delays the punishment of the water that causes the curse, but a woman whose punishment is delayed does not give birth and does not flourish; rather, she progressively deteriorates. Ultimately she dies by the same death as a sota who dies immediately.

רַבִּי שִׁמְעוֹן אוֹמֵר, אֵין זְכוּת תּוֹלָה בַמַּיִם הַמָּרִים. וְאִם אַתָּה אוֹמֵר, הַזְּכוּת תּוֹלָה בַמַּיִם הַמְאָרְרִים, מַדְהֶה אַתָּה אֶת הַמַּיִם בִּפְנֵי כָל הַנָּשִׁים הַשּׁוֹתוֹת, וּמוֹצִיא אַתָּה שֵׁם רַע עַל הַטְּהוֹרוֹת שֶׁשָּׁתוּ, שֶׁאוֹמְרִים טְמֵאוֹת הֵן אֶלָּא שֶׁתָּלְתָה לָהֶן זְכוּת. רַבִּי אוֹמֵר, הַזְּכוּת תּוֹלָה בַמַּיִם הַמְאָרְרִים, וְאֵינָהּ יוֹלֶדֶת וְאֵינָהּ מַשְׁבַּחַת, אֶלָּא מִתְנַוְּנָה וְהוֹלֶכֶת, לְסוֹף הִיא מֵתָה בְּאוֹתָהּ מִיתָה: