12. συνπαρ., only here. ἐν (cf. ἐπί, 2Co 7:7), no |[65], = in my feelings about you.
[65] | parallel to
διὰ τῆς ἐν ἀλλήλοις κ.τ.λ. πίστις has its regular meaning, faith in GOD through Christ, ἐν ἀλλ., which we each find in the other: he piles up phrases to emphasise the reciprocity of benefit (συν., ἐν ἀλλ., ὑ. κ. ἐ.).