[42:20] 1 tn Heb “you are erring at the cost of your own lives” (BDB 1073 s.v. תָּעָה Hiph.3 and HALOT 1626 s.v. תָּעָה Hif 4, and cf. BDB 90 s.v. בְּ 3 and see parallels in 1 Kgs 2:23; 2 Sam 23:17 for the nuance of “at the cost of your lives”). This fits the context better than “you are deceiving yourselves” (KBL 1035 s.v. תָּעָה Hif 4). The reading here follows the Qere הִתְעֵיתֶם (hit’etem) rather than the Kethib which has a metathesis of י (yod) and ת (tav), i.e., הִתְעֵתֶים. The Greek text presupposes הֲרֵעֹתֶם (hare’otem, “you have done evil”), but that reading is generally rejected as secondary.
[42:20] 2 tn Heb “According to all which the Lord our God says so tell us and we will do.” The restructuring of the sentence is intended to better reflect contemporary English style.
[42:21] 3 tn Or “Today.”
[42:21] 4 tn The words “what he said” are not in the text but are implicit and seem necessary for clarity.
[42:21] 5 tn Heb “But you have not hearkened to the voice of [idiomatic for “obeyed” see BDB 1034 s.v. שָׁמַע Qal.1.m] the Lord your God, namely [cf. BDB 252 s.v. וְ 1.b] with respect [cf. BDB 514 s.v. לְ 5.f(c)] all which he has sent to us.” The verb is translated “don’t seem to want to obey” because they have not yet expressed their refusal or their actual disobedience. Several commentaries sensing this apparent discrepancy suggest that 42:19-22 are to be transposed after 43:1-3 (see, e.g., BHS note 18a, W. L. Holladay, Jeremiah [Hermeneia], 2:275; J. Bright, Jeremiah [AB], 252, 256, 258). However, there is absolutely no textual evidence for the transposition and little reason to suspect an early scribal error (in spite of Holladay’s suggestion). It is possible that Jeremiah here anticipates this answer in 43:1-3 through the response on their faces (so Bright, 256; F. B. Huey, Jeremiah, Lamentations [NAC], 361). G. L. Keown, P. J. Scalise, and T. G. Smothers (Jeremiah 26-52 [WBC], 249) also call attention to the stated intention in 41:17 and the fact that the strong warning in 42:15-17 seems to imply that a negative response is expected). The use of the perfect here is perhaps to be related to the perfect expressing resolve or determination (see IBHS 489 §30.5.1d). It is also conceivable that these two verses are part of a conditional sentence which has no formal introduction. I.e., “And if you will not obey…then you should know for certain that…” For examples of this kind of conditional clause introduced by two vavs (ו) see Joüon 2:628-29 §167.b, and compare Jer 18:4; Judg 6:13. However, though this interpretation is within the possibilities of Hebrew grammar, I know of no translation or commentary that follows it. So it has not been followed in the translation or given as an alternate translation.