3 And pray for us, too, that God may open a door for our message, so that we may proclaim the mystery of Christ, for which I am in chains.

Read Colossians 4:3 Using Other Translations

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:
At the same time, pray also for us, that God may open to us a door for the word, to declare the mystery of Christ, on account of which I am in prison--
Pray for us, too, that God will give us many opportunities to speak about his mysterious plan concerning Christ. That is why I am here in chains.