וַיִּזְבְּח֤וּ לַיהוָה֙ בַּיּ֣וֹם הַה֔וּא מִן־הַשָּׁלָ֖ל הֵבִ֑יאוּ בָּקָר֙ שְׁבַ֣ע מֵא֔וֹת וְצֹ֖אן שִׁבְעַ֥ת אֲלָפִֽים׃
And they sacrificed unto the LORD in that day, of the spoil which they had brought, seven hundred oxen and seven thousand sheep.
Read midrashic interpretation of II Chronicles 15:11: and classical rabbinic exegesis.