Midrasch zu Divrej Hajamim I 10:12
וַיָּקוּמוּ֮ כָּל־אִ֣ישׁ חַיִל֒ וַיִּשְׂא֞וּ אֶת־גּוּפַ֣ת שָׁא֗וּל וְאֵת֙ גּוּפֹ֣ת בָּנָ֔יו וַיְבִיא֖וּם יָבֵ֑ישָׁה וַיִּקְבְּר֨וּ אֶת־עַצְמוֹתֵיהֶ֜ם תַּ֤חַת הָאֵלָה֙ בְּיָבֵ֔שׁ וַיָּצ֖וּמוּ שִׁבְעַ֥ת יָמִֽים׃
Alle tapferen Männer machten sich auf und nahmen den Körper Sauls und die Körper seiner Söhne weg und brachten sie nach Jabesch und begruben ihre Knochen unter dem Terebinth in Jabesch und fasteten sieben Tage.
Pirkei DeRabbi Eliezer
Whence do we learn (the duty of) showing loving-kindness to mourners? From the men of Jabesh-Gilead. For when Saul and his sons were slain, the men of Jabesh Gilead said: Are we not bound to show loving-kindness to the man who delivered us from the disgrace of the sons of Ammon? All their mighty men arose and went all night to the walls of Beth-Shan, and they took the body of Saul and the bodies of his sons from the walls of Beth-Shan, as it is said, "All the valiant men arose, and took away the body of Saul" (1 Chron. 10:12).
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