Isaianic passages whose influence is among the greatest and most widespread: 6:1–13; 10:33–11:10; and the so-called Servant songs (42:1–7; 49:1–9a; 50:4–11 and 52:13–53:12). These passages are also among the most important Isaianic texts for the New Testament authors and early Christianity generally. I will begin, however, with a succinct discussion of what we can know, and what we cannot, regarding the text of Isaiah in the Second Temple period, giving special attention to the manuscripts discovered