I asked because I saw on the Internet that “within” is the wrong translation. Within and among are two different things in our language. So, perhaps it’s proper to say something like, “God is within you, His creation and also among His people, the Church?”
Personally, based on the context, having
entos to mean ‘within’ or ‘inside’ ourselves, while a favorite by many people, is rather problematic when seen from the context - Jesus’ audience in this passage are not His disciples, but Pharisees. We have no indication that the they, elsewhere on the Gospels painted as being more concerned with the outward observance of the Law than inward holiness as well as being in a number of cases hostile to Jesus, were the sort of people that Jesus would say this about.
Also, the question posed to Jesus is “
when the kingdom of God will come”. Having Jesus say ‘it’s inside yourselves!’ would be a non-sequitur, IMHO.
This might suggest that “
within” is to be understood as ‘with you/within your midst’ rather than ‘inside your beings’. In modern English, rendering
entos as ‘among’ captures the sense better due to the potential confusion that ‘within’ might bring. The kingdom is now “among” the Pharisees, “within” their midst, in the Person and ministry of Jesus: it’s now staring at them in the face.
Interestingly, the Haydock Commentary for this verse expresses the same idea:
Ver. 21. Is within you. It is with you; your Messias is already come. —
He standeth in the midst of you, as John the Baptist told you. (John i. 26.) (Witham)