To whom did Christ become the author of salvation?

Answer

"And being made perfect, He became the author of eternal salvation unto all them that obey Him." Verse 9.

To whom was this covenant-promise later renewed?
What other reason is given for keeping the Sabbath?
What class of men did he say would arise in the church?
What false idea of this gathering were some to hold?
What is Christ's message to the last church?
Against whom do we wrestle?
What promise is made to them that walk uprightly?

Questions & Answers are from the book Bible Readings for the Home Circle