αφ 575 PREP ου 3739 R-GSM αν 302 PRT εγερθη 1453 5686 V-APS-3S ο 3588 T-NSM οικοδεσποτης 3617 N-NSM και 2532 CONJ αποκλειση 608 5661 V-AAS-3S την 3588 T-ASF θυραν 2374 N-ASF και 2532 CONJ αρξησθε 756 5672 V-AMS-2P εξω 1854 ADV εσταναι 2476 5760 V-RAN και 2532 CONJ κρουειν 2925 5721 V-PAN την 3588 T-ASF θυραν 2374 N-ASF λεγοντες 3004 5723 V-PAP-NPM κυριε 2962 N-VSM κυριε 2962 N-VSM ανοιξον 455 5657 V-AAM-2S ημιν 2254 P-1DP και 2532 CONJ αποκριθεις 611 5679 V-AOP-NSM ερει 2046 5692 V-FAI-3S υμιν 5213 P-2DP ουκ 3756 PRT-N οιδα 1492 5758 V-RAI-1S υμας 5209 P-2AP ποθεν 4159 ADV-I εστε 2075 5748 V-PXI-2P
Vincent's NT Word Studies
25. When once (af ou). Lit., from the time that. Compare ver. 7. Some editors connect this with the previous sentence: "Shall not be able when once," etc.Whence (poqen). Of what family. Ye do not belong to my household. See John vii. 27: "We know whence he (Jesus) is;" i.e., we know his birthplace and family.
Robertson's NT Word Studies
13:25 {When once} (af' hou an). Possibly to be connected without break with the preceding verse (so Westcott and Hort), though Bruce argues for two parables here, the former (verse #24) about being in earnest, while this one (verses #25-30) about not being too late. The two points are here undoubtedly. It is an awkward construction, af' hou = apo toutou hote with an and the aorist subjunctive (egerqei and apokleisei). See Robertson, _Grammar_, p. 978. {Hath shut to} (apokleisei), first aorist active subjunctive of apokleiw, old verb, but only here in the N.T. Note effective aorist tense and perfective use of apo, slammed the door fast. {And ye begin} (kai arxesqe). First aorist middle subjunctive of arcomai with af' hou an like egerqei and apokleisei. {To stand} (hestanai). Second perfect active infinitive of histemi, intransitive tense {and to knock} (kai krouein). Present active infinitive, to keep on knocking. {Open to us} (anoixon hemin). First aorist active imperative, at once and urgent. {He shall say} (erei). Future active of eipon (defective verb). this is probably the apodosis of the af' hou clause.