Absolutely it is!
Receiving is a verb, something a person does: A Work Eph. 2:8-9!
A word used to express existence or an action, or to assert (verb) something.
"any of a large class of words in a language that serve to indicate the
occurrence or performance of an action"
http://www.thefreedictionary.com/verb
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Calling on Christ to save you may be a work if you want to call it that.
But its the only thing that is going to save you from eternal damnation.