That which corresponds to the “treading” or stringing of the bow is the drawing from the sheath or unsheathing of the sword: פָּתַח, Eze 21:28, cf. Psa 55:22. The combination יִשְׁרֵי־דֶּרֶךְ is just like תמימי־דוך, Psa 119:1. The emphasis in Psa 37:14 is upon the suffix of בְלִבָּם: they shall perish by their own weapon. קַשּׁתֹותָם has (in Baer) a Shebâ dirimens, as also in Isa 5:28 in correct texts.