The article discusses the Hebrew Bible passages preceding the passages "Song of the Sea," Exodus 15:1-18, and "Ha'Azinu," Deuteronomy 32:1–52, with a focus on the work of Jewish commentators on these preceding passages. Topics discussed include the commentary of medieval commentator Rabbi Moses Maimonides, acrostics read in the text by commentators, and the words and concepts of habaim, those arriving, and v'a'idah, and testify.