רִיבָ֣ה רִ֭יבִי וּגְאָלֵ֑נִי לְאִמְרָתְךָ֥ חַיֵּֽנִי׃
求你為我的案件辯護，救贖我；為了你的言語，求你使我存活。
Rashbam
וסחרוה, the letter ח in this word is the reason why the Torah did not need to write the word בה, i.e. תסחרו בה, “you may trade feely in it.” The vowel kametz under the letter ח instead of the semi vowel sheva we would have expected is what saved the Torah the word, or rather the extra letter ב by adding the word בה to the word וסחרו.