Final answer:
The sentence in question does not contain a gerund phrase because it lacks a verb ending in '-ing' that is functioning as a noun.
Step-by-step explanation:
The sentence 'He accepted Christ as his savior' does not contain a gerund phrase. A gerund is defined as any '-ing' verb that functions as a noun. However, in this sentence, there is no verb ending in '-ing' that is being used as a noun, so there is no gerund, and consequently no gerund phrase.