John Gill Commentary Genesis 28:22

"then this stone, which I have set up for a pillar, shall be God`s house. And of all that thou shalt give me I will surely give the tenth unto thee." — Genesis 28:22 (ASV)

And this stone, which I have set for a pillar, shall be God's
house Building an altar of it with some others, and sacrificing to God on it; and wherever God is worshipped, that place is his house, be it what or where it will; and Jacob did as he promised to do, see (Genesis 35:3Genesis 35:7) :

and of all that you shall give me, I will surely give the tenth unto
you ; for the support of his worship; for the maintenance of such that were employed in it; for the provision of sacrifice, and for the relief of the poor, or for any use or service in which God might be glorified: this was imitated by the Heathens in later times, who gave the tenth of their substance to their gods, Jupiter, Hercules, and others ^F23 .

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FOOTNOTES:

• F23: Herodot. Clio sive, l. 1. c. 89. Varro apud Macrob. Saturnal. l. 3. c. 12. Pompon. Laet. de Sacerdot. Rom. c. 3.