in the day

Exodus 23:16
You are also to observe the Feast of Harvest with the firstfruits of the produce from what you sow in the field. And observe the Feast of Ingathering at the end of the year, when you gather your produce from the field.

Exodus 34:22
And you are to celebrate the Feast of Weeks with the firstfruits of the wheat harvest, and the Feast of Ingathering at the turn of the year.

Leviticus 23:10, 15-21
"Speak to the Israelites and say, 'When you enter the land I am giving you and reap its harvest, you are to bring to the priest the sheaf of the firstfruits of your harvest. . . .

Deuteronomy 16:9-11
You are to count off seven weeks from the time you first put the sickle to the standing grain. . . .

Acts 2:1
When the day of Pentecost came, the believers were all together in one place.

1 Corinthians 15:20
But Christ has indeed been raised from the dead, the firstfruits of those who have fallen asleep.

James 1:18
He chose to give us birth through the word of truth, that we would be a kind of firstfruits of His creation.