Odd, I am looking in Strong's, reference 5315 and it shows it is esthio, not phagein (I'm having trouble finding that use in the New Testament in similar context). The exact same word is used in Revelation Rev 2:17 in a very figurative verse (He that hath an ear, let him hear what the Spirit saith unto the churches; To him that overcometh will I give to eat of the hidden manna, and will give him a white stone, and in the stone a new name written, which no man knoweth saving he that receiveth [it].)
What Strong's reference number do you have for phagein?
I am looking in Strong's, reference 5315 and it shows it is esthio, not phageinThat's because Strong's does not assign a separate number to phagein. Strong's is a useful but flawed tool.
If one consults John 6:53 in any Greek text of the New Testament, the word used is phagein.
I do not find phagein in Rev 2:17.