From G756; (properly abstract) a {commencement} or (concrete) chief (in various applications of {order} {time} place or rank): - {beginning} {corner} (at {the} the) first ({estate}) {magistrate} {power} {principality} {principle} rule.
Heb 2:10For it became him, for whom are all things, and by whom are all things, in bringing many sons unto glory, to make the captainG747 of their salvation perfect through sufferings.
Heb 12:2Looking unto Jesus the authorG747 and finisher of our faith; who for the joy that was set before him endured the cross, despising the shame, and is set down at the right hand of the throne of God.