Colossians 4:2-6

2Continue stedfastly in prayer, watching therein with thanksgiving;

3withal praying for us also, that God may open unto us a door for the word, to speak the mystery of Christ, for which I am also in bonds;

4that I may make it manifest, as I ought to speak.

5Walk in wisdom toward them that are without, redeeming the time.

6Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer each one.