1 sn Thunder is a common motif in OT theophanies and in ancient Near Eastern portrayals of the storm god and warring kings. See R. B. Chisholm, “An Exegetical and Theological Study of Psalm 18/2 Samuel 22” (Th.D. diss., Dallas Theological Seminary, 1983), 179-83.
tn Heb “offered his voice.” In this poetic narrative context the prefixed verbal form is best understood as a preterite indicating past tense, not an imperfect. Note the prefixed verbal form with vav (ו) consecutive in the preceding line.
5 tc Heb “to the one who rides through the skies of skies of ancient times.” If the MT is retained, one might translate, “to the one who rides through the ancient skies.” (שְׁמֵי [shÿmey, “skies of”] may be accidentally repeated.) The present translation assumes an emendation to בַּשָּׁמַיִם מִקֶּדֶם (bashamayim miqqedem, “[to the one who rides] through the sky from ancient times”), that is, God has been revealing his power through the storm since ancient times.