Talmud for Isaiah 1:28

HALAKHAH: Since we had stated, “one does not spread out the Shema` with less than ten attendants”, for which purpose did we state, “one does not stand before the Ark with less than ten attendants”? It is necessary for what was stated, “one does not spread out the Shema` with less than ten attendants; if they started with ten and some left, he finishes. One does not stand before the Ark with less than ten attendants; if they started with ten and some left, he finishes. One does not lift his hands with less than ten attendants; if they started with ten and some left, he finishes. One does not read in the Torah with less than ten attendants; if they started with ten and some left, he finishes. One does not close with Prophets with less than ten attendants; if they started with ten and some left, he finishes. About all these He says, those who abandon the Eternal will disappear.⁹⁹Is. 1:28. Cf. Babli Berakhot 8a, bottom.”