1. ἀρχηγός,'beginner, leader.' It is 'prince' in Acts 3:15 ('author' in the margin), the Lord Jesus is the originator of life. In Hebrews 12:2 , the Lord Jesus is the 'leader ' and completer of faith: He began and finished the whole course. In Hebrews 2:10 it is 'captain ' in the A.V., He was 'leader' of their salvation through suffering

2. αἴτιος, 'cause,' 'occasion.' The Lord Jesus became the author of eternal salvation.' Hebrews 5:9 .