Parallel
Psalms 103:4
Swete's Septuagint · Berean Standard Bible
ὁ ποιῶν τοὺς ἀγγέλους αὐτοῦ πνεύματα, καὶ τοὺς λειτουργοὺς αὐτοῦ πῦρ φλέγον.
104:4
He makes the winds His messengers, flames of fire His servants (note: LXX He makes His angels winds, His servants flames of fire. Cited in Hebrews 1:7).