Withal - With all the supplications which you offer for other persons and things; or at the same time that you pray for them.
Praying also for us - Notes, Ephesians 6:19-20; compare 2 Corinthians 1:11; Philippians 1:19; Hebrews 13:18-19.
That God would open to us a door of utterance - To preach the gospel. He earnestly desired to have liberty to preach the gospel, and asked them to pray that this might be restored to him; see the notes at Ephesians 6:19.
To speak the mystery of Christ - Called in Ephesians 6:19, the “mystery of the gospel;” see the notes there.
For which I also am in bonds - A prisoner at Rome; Notes, Ephesians 6:20.