Jeremiah 4:21 Midrash

עַד־מָתַ֖י אֶרְאֶה־נֵּ֑ס אֶשְׁמְעָ֖ה ק֥וֹל שׁוֹפָֽר׃ (ס)

How long shall I see the standard, Shall I hear the sound of the horn?

Read midrashic interpretation of Jeremiah 4:21: and classical rabbinic exegesis.