Colossians 4:2-6 RSV

2 Continue steadfastly in prayer, being watchful in it with thanksgiving;
3 and pray for us also, 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,
4 that I may make it clear, as I ought to speak.
5 Conduct yourselves wisely toward outsiders, making the most of the time.
6 Let your speech always be gracious, seasoned with salt, so that you may know how you ought to answer every one.