Moses
Numbers 9:7BSB·traditional attribution

and said to Moses, “We are unclean because of a dead body, but why should we be excluded from presenting the LORD’s offering with the other Israelites at the appointed time?”

Matthew Henry Presbyterian @wholebiblehenry

Here we have, I. An order given for the solemnization of the passover, the day twelvemonth after they came out of Egypt, on the fourteenth day of the first month of the second year, some days before they were numbered, for that was done in the beginning of the second month. Observe, 1.

Commenting on Numbers 9:1-14

John Gill Reformed Baptist @doctorgill

And Moses said unto them, stand still,.... Where they were; Aben Ezra says, at the door of the tabernacle of the congregation: and I will hear what the Lord will command concerning you; as it was a singular case, of which there had been no instance before, Moses would not determine anything about it himself, but would inquire of the Lord his mind and will...

Jamieson-Fausset-Brown Reformed @jfbcommentary

A SECOND PASSOVER ALLOWED. (Num 9:6-14) there were certain men, who were defiled by the dead body of a man--To discharge the last offices to the remains of deceased relatives was imperative; and yet attendance on a funeral entailed ceremonial defilement, which led to exclusion from all society and from the camp for seven days.

Commenting on Numbers 9:6-14