take care diligently, lest you forget the Lord, who led you away from the land of Egypt, from the house of servitude. You shall fear the Lord your God, and you shall serve him alone, and you shall swear by his name.
But before all things, my brothers, do not choose to swear, neither by heaven, nor by the earth, nor in any other oath. But let your word 'Yes' be yes, and your word 'No' be no, so that you may not fall under judgment.