{Thou shalt not commit adultery} (ou moicheuseis). These
quotations (verses  21,27,33 ) from the Decalogue ( Ex 20  and
 De 5 ) are from the Septuagint and use ou and the future
indicative (volitive future, common Greek idiom). In  5:43  the
positive form, volitive future, occurs (agap(8873)eis). In  5:41 
the third person (dot(935c)) singular second aorist active
imperative is used. In  5:38  no verb occurs.