en_tn/heb/03/15.md

it has been said

This can be stated in active form. Alternate translation: "the writer wrote" (See: rc://en/ta/man/translate/figs-activepassive)

if you hear his voice

God's "voice" represents him speaking. See how you translated this in Hebrews 3:7. Alternate translation: "when you hear God speak" (See: rc://en/ta/man/translate/figs-metonymy)

as in the rebellion

Here "rebellion" can be stated as a verb. See how you translated this in Hebrews 3:8. Alternate translation: "as when your ancestors rebelled against God" (See: rc://en/ta/man/translate/figs-abstractnouns)