Exodus 36:22Meaning & Commentary from the Church Fathers

There were two mortises throughout every board, that one might be joined to the other. And in this manner he made for all the boards of the tabernacle.

שְׁתֵּ֣י יָדֹ֗ת לַקֶּ֙רֶשׁ֙ הָֽאֶחָ֔ד מְשֻׁלָּבֹ֔ת אַחַ֖ת אֶל־אֶחָ֑ת כֵּ֣ן עָשָׂ֔ה לְכֹ֖ל קַרְשֵׁ֥י הַמִּשְׁכָּֽן׃