Study Guide Sotah 30 Today's daf is sponsored by Geri Goldstein Guedalia and Harris Guedalia in honor of Eliraz Levant on his bar mitzvah Shabbat, Acharei Mot/Kedoshim. "We are so proud of you!"    Today’s daf is sponsored by Raquel Lifshutz Pilzer and Jen Lifshutz Lankin in loving memory of their brother, Avigdor Chai Abraham, Z"L, on his second yartzeit. "Your incredible strength, bravery and laugh will always be with us. You are always in our hearts and on our minds. We miss you dearly and hope to continue to learn in your merit, and make you proud."  The Gemara tries to answer the difficulty raised by Rabbi Yochanan in refuting the kal vachomer from which Rabbi Yosi learned that a third-degree impurity can pass on impurity and create fourth-degree impurity in sacrificial items, but without success. Rav Asi said in the name of Rav that there are five rabbis who all held that an item with second-degree impurity does pass on impurity to create third-degree impurity in non-sacred items (chulin). The Gemara cites five sources in which we see the opinions of each of the rabbis and explains how we can learn what they hold about non-sacred items not becoming impure at the level of third-degree. How did the people sing with Moses in the splitting of the sea? A braita states three options - either they answered each line of Moshe by reciting the chorus, or Moshe sang and they repeated everything he said, or Moshe started and they joined in and sang everything along with him. There is a midrash that the babies also saw the presence of God at the splitting of the sea and sang along with everyone.