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 false swearers, and against those that oppress the hireling in his wages, the widow, and the fatherless, and that turn aside the stranger from his right, and fear not me, saith the Lord of hosts.1

6For I am the Lord, I change not; therefore ye sons of Jacob are not consumed.