They are not made from the same skin
They are different from each other. They are essentially distinct from one another.
(Modern Hebrew)
Translation
Expression (Hebrew)
אֵינָם עֲשׂוּיִים מֵעוֹר אֶחָד
Definition (Hebrew)
שׁוֹנִים זֶה מִזֶּה. נִבְדָּלִים הָאֶחָד מִן הַשֵּׁנִי בְּמַהוּתָם.
(הָעִבְרִית הַחֲדָשָׁה)