Moses
Numbers 29:40ESV·traditional attribution
So Moses told the people of Israel everything just as the LORD had commanded Moses.
Matthew Henry Presbyterian @wholebiblehenry
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.
Commenting on Numbers 29:12-40