NET
3 At the same time pray for us too, that God may open a door for the message so that we may proclaim the mystery of Christ, for which I am in chains.
Darby
3 praying at the same time for us also, that God may open to us a door of the word to speak the mystery of Christ, on account of which also I am bound,
KJV
3 Withal praying also for us, that God would open unto us a door of utterance, to speak the mystery of Christ, for which I am also in bonds: