וְאַחֲרָ֤יו הָיָה֙ שַׁמְגַּ֣ר בֶּן־עֲנָ֔ת וַיַּ֤ךְ אֶת־פְּלִשְׁתִּים֙ שֵֽׁשׁ־מֵא֣וֹת אִ֔ישׁ בְּמַלְמַ֖ד הַבָּקָ֑ר וַיֹּ֥שַׁע גַּם־ה֖וּא אֶת־יִשְׂרָאֵֽל׃ (ס)
און נאָך אים איז געװען שמגר דער זון פֿון עַנָתן, װאָס האָט געשלאָגן פֿון די פּלִשתּים זעקס הונדערט מאַן מיט אַן אָקסנשטעקן. און ער אױך האָט געהאָלפֿן ישׂראל.
Akeidat Yitzchak
Midrash Tanchuma on Parshat Acharey Mot writes: G-d said to Israel, "in the past you have been helped by means of human beings; in Egypt by Moses and Aaron; in the days of Sisera by Barak and Deborah; against the Midianites by Shamgar etc. throughout the period of the judges. Because G-d employed a human being as His instrument in all of these salvations, the salvation did not last, and you became enslaved again and again. In the future however, I MYSELF will be your salvation, and you will never again be subjugated." This is the meaning of Isaiah 45,17, "Israel will be saved by the Lord, an eternal salvation."