Tobit 8,4

4Then Tobias exhorted the virgin, and said to her: Sara, arise, and let us pray to God today, and tomorrow, and the next day: because for these three nights we are joined to God: and when the third night is over, we will be in our own wedlock.

4Tunc hortatus est virginem Tobias, dixitque ei: Sara, exsurge, et deprecemur Deum hodie, et cras, et secundum cras: quia his tribus noctibus Deo jungimur; tertia autem transacta nocte, in nostro erimus conjugio.

4Then Tobias exhorted the virgin, and he said to her: “Sarah, get up and let us pray to God this day, and tomorrow, and the following day. For, during these three nights, we are being joined to God. And then, when the third night has passed, we ourselves will be joined together.