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The interpretation timeline

Tob 6:18

How this passage has been read — the sources, oldest to newest.

From the early Church Fathers to now.

Tob 6:18 · Douay-Rheims
“But thou when thou shalt take her, go into the chamber, and for three days keep thyself continent from her, and give thyself to nothing else but to prayers with her.”
Post-Reformation c. 1650 – 1900
1849
A.D.
George Leo Haydock Catholic
1774–1849
“Days. No morality could be more pure. The Christian Church has given similar counsels, in the Capitulars of France, and of Erard, archbishop of Tours, and in many rituals published in the 16th century. The council of Trent only advises people to approach to the sacraments of penance and the Holy Eucharist, three days at least before marriage. The Greeks, in their third council of Carthage, (canon 13) order the first night to be spent in continence.”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.