Reference for Sotah 74:11
יכול יהיו כל הברכות קודמות לקללות תלמוד לומר ברכה וקללה ברכה אחת קודמת לקללה ואין כל הברכות קודמות לקללות
But [the purpose is to indicate] that the blessing must precede the curse. It is possible to think that all the blessings must precede the curses; therefore the text states 'blessing' and 'curse, I.e., one blessing precedes a curse and all the blessings do not precede the curses. A further purpose is to draw a comparison between blessing and curse to tell us that as the curse is pronounced by the Levites so the blessing must be pronounced by the Levites; as the curse is uttered in a loud voice so must the blessing be uttered in a loud voice; as the curse is said in the holy tongue<span class="x" onmousemove="('comment',' V. supra 33a. ');"><sup>21</sup></span> so must the blessing be said in the holy tongue; as the curse is in general and particular terms so must the blessing be in general and particular terms; and as with the curse both parties respond with Amen so with the blessing both parties respond with Amen.