en_tn/mat/15/24.md

I was not sent to anyone

This can be stated in active form. Alternate translation: "God did not send me to anyone" (See: rc://en/ta/man/translate/figs-activepassive)

to the lost sheep of the house of Israel

This is a metaphor comparing the entire nation of Israel to sheep who have gone away from their shepherd. See how you translated this in Matthew 10:6. (See: rc://en/ta/man/translate/figs-metaphor)