How is righteousness received?

Answer

"For if by one man's offence death reigned by one; much more they which receive abundance of grace and
of the gift of righteousness shall reign in life by one, Jesus Christ." Rom. 5: 17.

How may one know that this does not refer to the earthly sanctuary ?
Can man of himself, unaided by Christ, keep the law?
From what time was Christ, the Word, associated with God, the Father?
Until what time were the saints to he persecuted under the Roman power?
What is to be their fate?
What scripture indicates that each child of God has an accompanying angel?
What does He know and remember?

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