Sanderson, is apparent, (1.) In the text itself, Josh. ix. 19. (2.) In the miracle wrought for that victory which Joshua obtained in defending the Gibeonites when the sun stood still, Josh. x. 8, 13. (3.) In the severe revenge that was taken on the lives of Saul's posterity for offering to violate it, 2 Sam. xxi. 2. 2. And this seemeth to be the very case of Jacob, who took not himself disobliged from Leah notwithstanding the mistake of the person through deceit. And though the _concubitus_ was added to the contract, that obliged most as it was the perfecting of the contract, which an oath doth as strongly. 3. And the nature of the thing doth confirm my doubt; because when I see the person before me there is the _individuum determinatum_, in the _hæc homo_, and so all that is essential to my vow is included in it: if I mistake the name, or the quality, or birth, or relations of the person, yet my covenant is with this determinate person that is present, though I be induced to it by a false supposition that she is another. But this I leave to the discussion of the judicious. _Rule_ XLII. The question also is weighty and of frequent use, if a man vow a thing as a duty in obedience to God and conscience, which he would not have done if he had taken it to be no duty, and if he afterwards find that it was no duty, is he obliged to keep this vow? And the true answer is, that the discovery of his error doth only discover the nullity of his obligation to make that vow, and to do the thing antecedently to the vow; but if the thing be lawful, he is bound to it by his vow notwithstanding the mistake which induced him to make it. _Rule_ XLIII. Vows about trifles (not unlawful) must be kept though they are sinfully made.[87] As if you vow to take up a straw, or to forbear such a bit or sort of meat, or garment, &c. But to make such is a great profanation of God's name, and a taking it in vain as common swearers do. _Rule_ XLIV. A general oath, though taken upon a particular occasion, must be generally or strictly interpreted (unless there be special reasons for a restraint, from the matter, end, or other evidence). As if you are afraid that your son should marry such a woman, and therefore swear him not to marry without your consent; he is bound thereby neither to marry that woman nor any other. Or if your servant haunt one particular ale-house, and you make him forswear all houses in general, he must avoid all other. So Dr. Sanderson instanceth in the oath of supremacy, p. 195. _Rule_ XLV. He that voweth absolutely or implicitly to obey another in all things, is bound to obey him in all lawful things, where neither God, nor other superior or other person is injured; unless the nature of the relation, or the ends or reasons of the oath, or something else, infer a limitation as implied.