prosphoneo

προσφωνοῦντα [2 verses](part pl pres act neut nom) "Calling" is from prosphoneo, which means to "call or speak to," "address," " call by name," "issue directions or orders," "pronounce," "utter" and "make a report."  - The Greek word translated as "calling"  means to "call or speak to," call by name," or "issue directions or orders." This word is also uncommon for Christ. Christ uses other terms to mean "call by name" and "speak to" so the sense of "issuing orders" is most likely and consistent with what follows.