וְעַ֣ל ׀ מִזְבַּ֣ח הַזָּהָ֗ב יִפְרְשׂוּ֙ בֶּ֣גֶד תְּכֵ֔לֶת וְכִסּ֣וּ אֹת֔וֹ בְּמִכְסֵ֖ה ע֣וֹר תָּ֑חַשׁ וְשָׂמ֖וּ אֶת־בַּדָּֽיו׃
And upon the golden altar they shall spread a cloth of blue, and cover it with a covering of sealskin, and shall set the staves thereof.
Find Talmudic references to Numbers 4:11: , passages from the Talmud Bavli and Yerushalmi.