'Due' in the Bible

We, however, will not exceed due limits in our boasting, but will keep within the limits of the sphere which God has assigned to us as a limit, which reaches even to you.

We do not exceed our due limits, and take credit for other men's labours; but we entertain the hope that, as your faith grows, we shall gain promotion among you--still keeping within our own sphere--promotion to a larger field of labour,