fullness
The "fullness of the Gentiles" is the completion of the purpose of God in this age, namely, the outcalling from among the Gentiles of a people for Christ's name, "the church which is His body" (Ephesians 1:22); (Ephesians 1:23)
Compare (Acts 15:14); (Ephesians 4:11-13); (1 Corinthians 12:12); (1 Corinthians 12:13).
It must be distinguished from "the times of the Gentiles" (Luke 21:24).
mystery
See note, ( See Scofield) - (Matthew 13:11).