2 Samuel 8:13

And David gat {him} a name when he returned from smiting of the Syrians in the valley of salt, {being} eighteen thousand {men}. {smiting: Heb. his smiting}

David earned a reputation when he returned from striking down eighteen thousand men of the Syrians in the Valley of Salt.

וַיַּ֤עַשׂ דָּוִד֙ שֵׁ֔ם בְּשֻׁב֕וֹ מֵהַכּוֹת֥וֹ אֶת־אֲרָ֖ם בְּגֵיא־מֶ֑לַח שְׁמוֹנָ֥ה עָשָׂ֖ר אָֽלֶף׃

vayaʿas david shem bshubvo mehakvotvo ʾet-ʾaram bgeyʾ-melaḥ shmvonah ʿashar ʾalef