Lamentations 4:12 New English Translation

¹²Neither the kings of the earth
nor the people of the lands^[a] ever thought^[b]
that enemy or foe could enter
the gates^[c] of Jerusalem.

Lamentations 4:12 tn Heb “inhabitants of the mainland.”
Lamentations 4:12 tn Heb “they did not believe that.” The verb הֶאֱמִינוּ (heʾeminu), Hiphil perfect third person common plural from אָמַן (ʾaman, “to believe”), ordinarily is a term of faith and trust, but occasionally it functions cognitively: “to think that” (Job 9:16; 15:22; Ps 116:10; Lam 4:12) and “to be convinced that” (Ps 27:13) (HALOT 64 s.v. I אמן hif.1). The semantic relationship between “to believe” = “to think” is metonymical, that is, effect for cause.
Lamentations 4:12 sn The expression “to enter the gates” of a city is an idiom referring to the military conquest of that city. Ancient Near-Eastern fortified cities typically featured double and sometimes triple city gates—the bulwark of the defense of the city. Because fortified cities were enclosed with protective walls, the Achilles tendon of every city was the city gates—the weak point in the defense and the perennial point of attack by enemies (e.g., Judg 5:8, 11; 1 Sam 17:52; Isa 29:6; Jer 17:27; 51:54; Ezek 21:20, 27; Mic 1:9, 12; Neh 1:3; 2:3, 13, 17).

New English Translation (NET)