OpenLXX
Numbers 8

Numbers 8:18

Septuagint · public domain
Thomson 1808
(on the day when I smote all the first-born in the land of Egypt, I hallowed them for myself) and I have taken the Levites instead of all the first born among the children of Israel,
Brenton 1851
And I took the Levites in the place of every first-born among the children of Israel.
Greek · Brenton
καὶ ἔλαβον τοὺς Λευίτας ἀντὶ παντὸς πρωτοτόκου ἐν υἱοῖς Ἰσραήλ.