Lamentations 3:64 New English Translation

⁶⁴Pay them back^[a] what they deserve,^[b] O Lord,
according to what they^[c] have done.^[d]

Lamentations 3:64 tn Heb “Please cause to return.” The imperfect verb תָּשִׁיב (tashiv), Hiphil imperfect second person masculine singular from שׁוּב (shuv, “to return”), functions in a volitional sense, like an imperative of request. The Hiphil stem of שׁוּב (shuv, in the Hiphil “to cause to return”) often means “to make requital, to pay back” (e.g., Judg 9:5, 56; 1 Sam 25:39; 1 Kgs 2:32, 44; Neh 3:36 HT [4:4 ET]; Prov 24:12, 29; Hos 12:3; Joel 4:4, 7 HT [3:4, 7 ET]) (BDB 999 s.v. שׁוּב 4.a).
Lamentations 3:64 tn Heb “recompense to them.” The noun גְּמוּל (g^emul, “dealing, accomplishment”) has two metonymical (cause-effect) meanings: (1) positive “benefit” and (2) negative “retribution, requital, recompense,” the sense used here (e.g., Pss 28:4; 94:2; 137:8; Prov 19:17; Isa 35:4; 59:18; 66:6; Jer 51:6; Lam 3:64; Joel 4:4, 7 HT [3:4, 7 ET]). The phrase תָּשִׁיב גְּמוּל (tashiv g^emul) means “to pay back retribution” (e.g., Joel 4:4, 7 HT [3:4, 7 ET]), that is, to return the deeds of the wicked upon them as a display of talionic or poetic justice.
Lamentations 3:64 tn Heb “their hands.” The term “hand” is a synecdoche of a part (= hands) for the whole person (= they).
Lamentations 3:64 tn Heb “according to the work of their hands.”

New English Translation (NET)