angels
(See Scofield "") .

world "oikoumene" = inhabited earth. (See Scofield "") .
angels (See Scofield "") .

kingdom of our God
The Dispensation of the Kingdom (2 Samuel 7:16 refs.) begins with the return of Christ to the earth, runs through the "thousand years" of His earth-rule, and ends when He has delivered up the kingdom to the Father. (See Scofield "2 Samuel 7:16") .
salvation (See Scofield "2 Samuel 7:16") .