2 Thessalonians 3:7-9

7For ye know yourselves how ye ought to imitate us, because we have not walked disorderly among you;

8nor have we eaten bread from any one without cost; but in toil and hardship working night and day not to be chargeable to any one of you:

9not that we have not the right, but that we might give ourselves as an example to you, in order to your imitating us.