Poussin has given rhythm to the directing lines by way of an interplay of jugs (at least 10) as if he was playing with the formal motif of the jug: vases, forms close to that of the amphora, the pelike and the Greek stamnos or hydria. The parallel with feminine forms is also inescapable. And the idea of virginity: Is Poussin emphasising the innocence or purity of Rebecca?