A.T. Robertson Commentary Ephesians 1:6

"to the praise of the glory of his grace, which he freely bestowed on us in the Beloved:" — Ephesians 1:6 (ASV)

To the praise (εις επαινον). Note the prepositions in this sentence.

Which (ης). Genitive case of the relative ην (cognate accusative with εχαριτωσεν (he freely bestowed), late verb χαριτοω (from χαρις, grace), in N.T. attracted to case of antecedent χαριτος only here and Lu 1:28.

In the Beloved (εν τω ηγαπημενω). Perfect passive participle of αγαπαω. This phrase nowhere else in the N.T. though in the Apostolic Fathers.