Acts 4:37

ἀγροῦ, a field. Joseph is perhaps chosen as an example of the primitive liberality of the Christian community, because there was something remarkable in the kind of gift, or the nature of the sacrifice which he made. And the character of the man, who was to play a part in the history of the Acts, is also set before us by his first recorded action.

Chrysostom says: μέλλει διηγεῖσθαι τὸ κατὰ Ἀνανίαν λοιπὸν καὶ Σάπφειραν, καὶ θέλων δεῖξαι τὸν ἄνδρα χείριστα ἡμαρτηκότα, πρῶτον μέμνηται τοῦ κατωρθωκότος.

τὸ χρῆμα, the money, the price realized. The word is seldom found in the singular in this sense. Perhaps it is so used here to indicate the compactness, the entirety of what was brought. It was the sum without deduction, in contrast to the proceeding which follows in the next chapter.