Numbers 16:1 introduces the rebellion of Korah, Dathan, and Abiram that Psalm 106:16 summarizes as envy of Moses and Aaron.

Numbers 16:3-50 recounts the full rebellion and its judgment, providing the narrative behind the envy mentioned in Psalm 106:16.

Numbers 16:7 describes the test with censers to determine whom the LORD chooses as holy, directly relating to the envy of Aaron in Psalm 106:16.

1 Chronicles 23:13 explains why Aaron is called 'the saint of the LORD' — he was set apart for holy service.

Exodus 28:36 describes the gold plate inscribed 'Holiness to the LORD' on Aaron's turban, explaining why Psalm 106:16 calls him 'the saint of the LORD'.

Leviticus 21:6-8 commands priests to be holy, grounding the designation of Aaron as 'saint' in Psalm 106:16.

Leviticus 21:10-12 gives specific holiness regulations for the high priest, reinforcing Aaron's sanctity referenced in Psalm 106:16.

Deuteronomy 33:8 refers to 'thy holy one' (likely Aaron), echoing the title 'saint of the LORD' in Psalm 106:16.