1 tn Heb “they are new.”
2 tn The adjective רַב (rav) has a broad range of meanings: (1) quantitative: “much, numerous, many (with plurals), abundant, enough, exceedingly” and (2) less often in a qualitative sense: “great” (a) of space and location, (b) “strong” as opposed to “weak” and (c) “major.” The traditional translation, “great is thy faithfulness,” is less likely than the quantitative sense: “your faithfulness is abundant” [or, “plentiful”]. NJPS is on target in its translation: “Ample is your grace!”
3 tn The noun מְגִנַּה (mÿginnah) is a hapax legomenon. Its meaning is debated; earlier lexicographers suggested that it meant “covering” (BDB 171 s.v.), but more recent lexicons suggest “shamelessness” or “insanity” (HALOT 546 s.v.). The translation is based on the term being parallel to “curse” and needing to relate to “heart.” Cf. NRSV “anguish of heart.”