Numbers 29:40 (BSB)

So Moses spoke all this to the Israelites just as the LORD had commanded him.

From Numbers 29. Also in the ESV.

Commentary on Numbers 29:40

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Numbers 29:12-40: Soon after the day of atonement, that day in which men were to afflict their souls, followed the feast of tabernacles, in which they were to rejoice before the Lord; for those that sow in tears shall soon reap in joy.