The interpretation timeline
Leviticus 23:12 Douay-Rheims

And on the same day that the sheaf is consecrated, a lamb without blemish of the first year shall be killed for a holocaust of the Lord.

1105 – 1771 2 witnesses

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
ועשיתם... כבש AND YE SHALL OFFER… A LAMB — This came (was brought) as an obligatory sacrifice in connection with the Omer.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And ye shall offer that day, when ye wave the sheaf,.... Besides the daily sacrifice of the morning and evening, and the additional offerings made on everyone of the seven days of the feast of unleavened bread: an he lamb without blemish of the first year, for a burnt offering unto the Lord; typical of the perfect and immaculate Lamb of God, whose sufferings are fitly signified by a burnt offering; and which were endured at the time he became the firstfruits of his people, and sanctified them.”
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.