Side-ring EXTRA · The prohibition binds both ezrach and ger
Torah Temimah is silent on 18:26. The verse itself and the classical sources emphasize that the statutes against arayos apply equally to the native-born and to the ger who dwells among you.
English: “The native and the stranger who sojourns among you” — both the native-born and the ger are obligated in the prohibitions of arayos.
Universal scope within the camp
The Land’s sensitivity to arayos does not distinguish between citizen and sojourner. Anyone who dwells in the community is bound by the same chukim and mishpatim.