Malachi 3:5-6

5And I will come near to you to judgment; and I will be a swift witness against the sorcerers, and against the adulterers, and against the false swearers, and against those that oppress the hired servant in [his] wages, the widow and the fatherless, and that turn aside the stranger [from his right], and fear not me, saith Jehovah of hosts.

6For I Jehovah change not, and ye, sons of Jacob, are not consumed.