Deuteronomy 16:9

The Festival of Weeks

16:9 You must count seven weeks; you must begin to count them from the time you begin to harvest the standing grain.

Mark 4:29

4:29 And when the grain is ripe, he sends in the sickle because the harvest has come.”

Revelation 14:15-16

14:15 Then another angel came out of the temple, shouting in a loud voice to the one seated on the cloud, “Use your sickle and start to reap, because the time to reap has come, since the earth’s harvest is ripe!” 14:16 So the one seated on the cloud swung his sickle over the earth, and the earth was reaped.