In him (εν αυτω). Repeats the idea of εν τω Χριστω of verse Ephesians 1:10.

We were made a heritage (εκληρωθημεν). First aorist passive of κληροω, an old word, to assign by lot (κληρος), to make a κληρος or heritage. So in LXX and papyri. Only time in N.T., though προσκληροω once also (Acts 17:4).

Purpose (προθεσιν). Common substantive from προτιθημ, a setting before as in Acts 11:23; Acts 27:13.