Ye have agreed together (sunephōnēthē humin). First aorist passive indicative of sumphōneō (to voice together, symphony), impersonal with dative; It was agreed together by you (or for you). “Your souls were allured together respecting this deceit” (Vincent).
To tempt the Spirit of the Lord (peirasai to pneuma kuriou). Like “Thou shalt not tempt the Lord thy God.” It was close to the unpardonable sin which was attributing the manifest work of the Holy Spirit to Beelzebub.
The feet (hoi podes). Graphic picture by Peter as he heard the steps of the young men at the door.