Charles Ellicott Commentary Numbers 4:11

"And 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:" — Numbers 4:11 (ASV)

And shall put to the staves thereof. —Better, And shall put in the staves thereof, as in Numbers 4:6; Numbers 4:8; so also in Numbers 4:14.