Final answer:
The sentence in this excerpt that uses personification is: 'The mass of foliage that had overgrown the summit of the rock was all on fire, blazing high into the night and fitfully illuminating the whole field.'
Step-by-step explanation:
The sentence in this excerpt from Ambrose Bierce's 'An Occurrence at Owl Creek Bridge' that uses personification is: 'The mass of foliage that had overgrown the summit of the rock was all on fire, blazing high into the night and fitfully illuminating the whole field.' In this sentence, the author personifies the foliage by describing it as being on fire and blazing into the night.