Deuteronomy 14:23

And thou shalt eat before Jehovah thy God, in the place which he shall choose, to cause his name to dwell there, the tithe of thy grain, of thy new wine, and of thine oil, and the firstlings of thy herd and of thy flock; that thou mayest learn to fear Jehovah thy God always.

Deuteronomy 4:10

the day that thou stoodest before Jehovah thy God in Horeb, when Jehovah said unto me, Assemble me the people, and I will make them hear my words, that they may learn to fear me all the days that they live upon the earth, and that they may teach their children.

Deuteronomy 12:5-7

But unto the place which Jehovah your God shall choose out of all your tribes, to put his name there, even unto his habitation shall ye seek, and thither thou shalt come;

Deuteronomy 12:17-18

Thou mayest not eat within thy gates the tithe of thy grain, or of thy new wine, or of thine oil, or the firstlings of thy herd or of thy flock, nor any of thy vows which thou vowest, nor thy freewill-offerings, nor the heave-offering of thy hand;

Deuteronomy 15:19-20

All the firstling males that are born of thy herd and of thy flock thou shalt sanctify unto Jehovah thy God: thou shalt do no work with the firstling of thy herd, nor shear the firstling of thy flock.

Treasury of Scripture Knowledge

Summary

And thou shalt eat before the LORD thy God, in the place which he shall choose to place his name there, the tithe of thy corn, of thy wine, and of thine oil, and the firstlings of thy herds and of thy flocks; that thou mayest learn to fear the LORD thy God always.

Eat before

The firstlings

General references

Bible References

Eat before

Deuteronomy 12:5
But unto the place which Jehovah your God shall choose out of all your tribes, to put his name there, even unto his habitation shall ye seek, and thither thou shalt come;

The firstlings

Deuteronomy 15:19
All the firstling males that are born of thy herd and of thy flock thou shalt sanctify unto Jehovah thy God: thou shalt do no work with the firstling of thy herd, nor shear the firstling of thy flock.

General references

Leviticus 27:30
And all the tithe of the land, whether of the seed of the land, or of the fruit of the tree, is Jehovah's: it is holy unto Jehovah.
John 2:14
And he found in the temple those that sold oxen and sheep and doves, and the changers of money sitting:

American Standard Version Public Domain