Matthew Poole and continuators on Numbers 20:8

8 Take the rod , and gather thou the assembly together, thou and Aaron thy brother, and speak ye unto the rock , before their eyes, and it shall give forth his water, and thou shalt bring forth to them water out of the rock; so thou shalt give the congregation and their beasts drink.

That rod which was laid up before the Lord in the tabernacle, as appears from ver. 9. But whether it was Aarons rod, which was undoubtedly laid up there, Numb. 17. 10. or Moses his rod by which he wrought so many miracles, it is not considerable; or whether it was not one and the same rod, which was commonly called Moses his rod, as here ver. 11. and elsewhere, and sometimes Aarons rod, as Exod. 7. 12. which may seem most probable. For it is likely, though not related elsewhere in Scripture, that wonder-working rod, called the rod of God, Exod. 4. 20. was laid up in some part of the tabernacle, though not in or near the Ark, where Aarons blossoming rod for a particular reason was put.

Which will sooner hear and obey my commands than these sottish and stubborn people.

Marginal references: Exod. 17. 5.