Pe.
16, 17. For the transposition of Hebrew letters (Pe and Ain, La 2:16, 17) in the order of verses, see Introduction.
opened … mouth—as ravening, roaring wild beasts (Job 16:9, 10; Ps 22:13). Herein Jerusalem was a type of Messiah.
gnash … teeth—in vindictive malice.
we have seen it—(Ps 35:21).