en_tn/exo/08/19.md

This is the finger of God

The words "finger of God" represent the power of God. Alternate translation: "This is the powerful work of God" (See: rc://en/ta/man/translate/figs-metonymy)

Pharaoh's heart was hardened

Here "heart" refers to Pharaoh. See how you translated this in Exodus 7:13. Alternate translation: "Pharaoh became more defiant" (See: rc://en/ta/man/translate/figs-synecdoche and rc://en/ta/man/translate/figs-metaphor)