וַיַּ֤עַל דָּוִד֙ וַֽאֲנָשָׁ֔יו וַֽיִּפְשְׁט֛וּ אֶל־הַגְּשׁוּרִ֥י והגרזי [וְהַגִּזְרִ֖י] וְהָעֲמָלֵקִ֑י כִּ֣י הֵ֜נָּה יֹשְׁב֤וֹת הָאָ֙רֶץ֙ אֲשֶׁ֣ר מֵֽעוֹלָ֔ם בּוֹאֲךָ֥ שׁ֖וּרָה וְעַד־אֶ֥רֶץ מִצְרָֽיִם׃
Rashi on I Samuel
Dovid…would go up. This is the present tense, i.e., he was always accustomed doing this.