Ephesians 3:11

κατὰ πρόθεσιν τῶν αἰώνων ἣν ἐποίησεν ἐν Χριστῷ Ἰησοῦ τῷ Κυρίῳ ἡμῶν·

RBT Translation:

according to a purpose of the Eternal (aiōn) Ones whom he has made within the Anointed One, Salvation, the Master of ourselves,

Julia Smith Literal 1876 Translation:
According to the purpose of times immemorial which he made in Christ Jesus our Lord:

LITV Translation:
according to the eternal purpose which He accomplished in Christ Jesus our Lord,