Deuteronomy 14:23
You are to eat a tenth of your grain, new wine, and oil, and the firstborn of your herd and flock, in the presence of Yahweh your God at the place where He chooses to have His name dwell,
Deuteronomy 4:10
The day you stood before the Lord your God at Horeb, the Lord said to me, ‘Assemble the people before Me, and I will let them hear My words, so that they may learn to fear Me all the days they live on the earth and may instruct their children.’
Deuteronomy 12:5-7
Instead, you must turn to the place Yahweh your God chooses from all your tribes to put His name for His dwelling and go there.
Deuteronomy 12:17-18
Within your gates you may not eat: the tenth of your grain, new wine, or oil; the firstborn of your herd or flock; any of your vow offerings that you pledge; your freewill offerings; or your personal contributions.
Deuteronomy 15:19-20
“You must consecrate to the Lord your God every firstborn male produced by your herd and flock.