A.T. Robertson Commentary Hebrews 7:23

"And they indeed have been made priests many in number, because that by death they are hindered from continuing:" — Hebrews 7:23 (ASV)

Many in number (πλειονες). Comparative predicate adjective, "more than one," in succession, not simultaneously.

Because they are hindered (δια το κωλυεσθα). Articular infinitive (present passive) with δια and the accusative case, "because of the being hindered."

By death (θανατω). Instrumental case.

From continuing (παραμενειν). Present active infinitive of the compound (remain beside) as in Php 1:25 and in the ablative case.