Numbers 4 11
They are to spread a blue cloth over the gold altar, cover it with fine leather, and then insert its carrying poles.
Compare with other 3 random translations
LSV Numbers 4:11And they spread a garment of blue over the golden altar, and have covered it with a covering of tachash skin, and have placed its poles,
NKJ Numbers 4:11“Over the golden altar they shall spread a blue cloth, and cover it with a covering of badger skins; and they shall insert its poles.
ASV Numbers 4:11And upon the golden altar they shall spread a cloth of blue, and cover it with a covering of sealskin, and shall put in the staves thereof: