Leviticus 20:9 uses the same 'his blood is upon him' formula for cursing parents — both are capital crimes.

Leviticus 18:25 continues the thought that the land vomits out its inhabitants due to defilement — reinforcing the severity.

Leviticus 18:23 forbids bestiality — the very act that this verse penalizes with death.

Leviticus 18:24 explains that such acts defile, providing the rationale for the death penalty here — a direct contextual link.

Exodus 22:19 directly repeats the same law: anyone who has sex with an animal must be put to death — a parallel statute.