וְסִֽיסְרָא֙ נָ֣ס בְּרַגְלָ֔יו אֶל־אֹ֣הֶל יָעֵ֔ל אֵ֖שֶּׁת חֶ֣בֶר הַקֵּינִ֑י כִּ֣י שָׁל֗וֹם בֵּ֚ין יָבִ֣ין מֶֽלֶךְ־חָצ֔וֹר וּבֵ֕ין בֵּ֖ית חֶ֥בֶר הַקֵּינִֽי׃
Sisera floh zu Fuße in das Zelt Jaëls, des Weibes des Keniten Heber, denn Frieden war zwischen Jabin, König von Hazor, und dem Hause des Keniten Heber.
Radak on Judges
And Sisera had fled: He did not flee to the place that his camp fled, as they fled towards their land, which was Haroshet-hagoyim; and Barak and his people chased after them and smote them with the edge of the sword. But Sisera knew that he could not escape by [just] fleeing, for they would catch up to him. So he fled to another place, in which they would not notice him and chase after him. So he fled to a different place close to the war's location, to escape to Yael's tent. For there was peace between them, so he thought that he could escape there and she would hide him until the war had passed.
Metzudat David on Judges
For there was peace: And because of this, he thought to escape there.