spiritual rebirth vs redemption

spiritual rebirth and redemption both are nouns.

Word	Noun	Adjective	Verb	Adverb
spiritual rebirth	Yes	No	No	No
redemption	Yes	No	No	No

As nouns, redemption is a hypernym of spiritual rebirth; that is, redemption is a word with a broader meaning than spiritual rebirth:

spiritual rebirth: a spiritual enlightenment causing a person to lead a new life
redemption: (theology) the act of delivering from sin or saving from evil

Other hypernyms of spiritual rebirth include salvation.

spiritual rebirth (noun)	redemption (noun)
a spiritual enlightenment causing a person to lead a new life	the act of purchasing back something previously sold
	(theology) the act of delivering from sin or saving from evil
	repayment of the principal amount of a debt or security at or before maturity (as when a corporation repurchases its own stock)