Commentary for Psalms 22:8

they will open Heb. יפטירו, they open, as (in Exod. 13:12, 13): “all that open (פטר) the womb,...and firstling (ופטר) of a donkey.” [Also] (in Prov. 17: 14): “like letting out (פוטר) water.”

All that see me laugh me to scorn: – This is true of Israel, for all who see them laugh them to scorn;

They shoot out with the lip: – and shoot out upon them with the lip words of mockery and insult;

They shake the head: – and they shake the head at them. They shoot out (יפטירי): i-e. they send out words with the lip. (This meaning may be illustrated) from "the shooting out (פוטר) of water" (Prov. 17:14). "Sending out" applies also to water, as "He sendeth forth springs" (Ps. 104:10); and it applies also to words, as "Thou sendest out thy mouth to evil" (ibid. 1. 19). cf. also the Targum of שלחו והאנשׁים (and the men were sent away) (Gen. 44:3), which is אתפטרו וגובריא.