confirm vs covenant

confirm is not a noun while covenant is a noun.

Word	Noun	Adjective	Verb	Adverb
confirm	No	No	Yes	No
covenant	Yes	No	Yes	No

As verbs, covenant is a hypernym of confirm; that is, covenant is a word with a broader meaning than confirm:

confirm (noun)	covenant (noun)
	a signed written agreement between two or more parties (nations) to perform some action
	(Bible) an agreement between God and his people in which God makes certain promises and requires certain behavior from them in return

confirm (verb)	covenant (verb)
make more firm	enter into a covenant or formal agreement
establish or strengthen as with new evidence or facts	enter into a covenant
strengthen or make more firm
administer the rite of confirmation to
support a person for a position