1 Corinthians 15:20

But, in truth, Christ has been raised from the dead, the first-fruits of those who are at rest.

Revelation 14:4

These are the men who never defiled themselves in their intercourse with women; they are as pure as virgins. These are the men who follow the Lamb wherever he goes. They were redeemed as the first-fruits of mankind for God and for the Lamb.

Treasury of Scripture Knowledge

Summary

As for the oblation of the firstfruits, ye shall offer them unto the LORD: but they shall not be burnt on the altar for a sweet savour.

Bible References

The oblation

1 Corinthians 15:20
But, in truth, Christ has been raised from the dead, the first-fruits of those who are at rest.
Revelation 14:4
These are the men who never defiled themselves in their intercourse with women; they are as pure as virgins. These are the men who follow the Lamb wherever he goes. They were redeemed as the first-fruits of mankind for God and for the Lamb.