Charles Ellicott Commentary Numbers 15:30

"But the soul that doeth aught with a high hand, whether he be home-born or a sojourner, the same blasphemeth Jehovah; and that soul shall be cut off from among his people." — Numbers 15:30 (ASV)

That doeth ought presumptuously.— Literally, with a high hand.

Reproacheth the Lord. —Rather, blasphemes, as in 2 Kings 19:6; 2 Kings 19:22.