Psalm 136:10 (WEB)
to him who struck down the Egyptian firstborn, for his loving kindness endures forever;
Fathers and councils · 1
“For having said, “who alone made great lights,” he goes on to explain what these are, “the sun to rule the day” (ver. 8), “the moon and stars to govern the night” (ver. 9); then he begins to tell the wonders which He did by means of angels and men: “who smote Egypt with their first-born” (ver. 10), and the rest.” — the author cites it
Read the whole comment