And do not make your oaths a means of deceit between you — He repeats this here for emphasis — lest a foot should slip that is lest your feet should slip off the path of Islam after being steady having been set upon it and lest you should taste evil that is chastisement forasmuch as you barred people from the way of God in other words for your refraining to fulfil covenants or barring others from doing this since your custom once established will be followed by others and there be a tremendous chastisement for you in the Hereafter.