Sirach 45:17

17 By his commandments, the Lord gave him authority over covenants for judgment, to teach Jacob the testimonies, and to enlighten Israel with his Law.

Sirach 45:17 In-Context

15 Moses ordained Aaron and anointed him with holy oil; it became an everlasting covenant for him and for his descendants for as long as heaven lasts, to minister to God, to be a priest at the same time, and to bless his people in his name.
16 Moses chose him out of all who were alive to offer fruitful sacrifices to the Lord, incense and a pleasing aroma as a remembrance, to secure reconciliation for the people.
17 By his commandments, the Lord gave him authority over covenants for judgment, to teach Jacob the testimonies, and to enlighten Israel with his Law.
18 Strangers conspired against Aaron, and they were jealous of him in the wilderness; those who were with Dathan and Abiram and the company of Korah assembled in anger and fury.
19 The Lord saw it and wasn't pleased, and they were destroyed in his furious anger; he performed wonders among them, consuming them in a blazing fire.
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