Colossians 2:1; Colossians 3:24; Colossians 4:1; Colossians 4:6

1 For I would that ye knew what great conflict I have for you, and for them at Laodicea, and for as many as have not seen my face in the flesh;
24 Knowing that of the Lord ye shall receive the reward of the inheritance: for ye serve the Lord Christ.
1 Masters, give unto your servants that which is just and equal; knowing that ye also have a Master in heaven.
6 Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.