‘Keeps’ and ‘stumbles’ are Greek aorist tenses, which means they happened at a point in time, but that person ‘has become’ (perfect tense) ‘guilty of breaking all of it’ (NIV), ‘accountable for all of it’ (ESV). The perfect tense refers to something that has happened but the person continues to experience the result of what that person has done. So, here the person who stumbles at one point of the law continues to be guilty or accountable for all points…