For the Feast of Weeks, the Israelites were to,

“…present a burnt offering as a sweet aroma to the LORD: two young bulls, one ram, and seven lambs in their first year…” (Numbers 28.27). 

The harmless and non-threatening lamb during the Feast of Weeks symbolized the great Lamb of God that God would give to the world, as first proclaimed on the Day of Pentecost (Acts 2), which was the day of the firstfruits, the great day of the Feast of Weeks.

Related Articles

• Numbers 28.24 – Seven days of burnt offerings (sevensinthebible.com)
• Numbers 28.11 – Seven lambs to begin new year (sevensinthebible.com)
• Messianic Prophecy Number 12: Gen 22.8, 14 – The Lamb a Type of the Messiah (theoldtestamentandthenewtestament.com)
• Numbers 28.19, 21 – Seven lambs for the seven days of the Feast of Unleavened Bread (sevensinthebible.com)