Genesis 28:22

And this stone, which I have set [for] a pillar, shall be God's house: and of all that thou shalt give me I will surely give [a tithe] the tenth unto thee.

Geneva Bible - And this stone, which I have set up as a pillar, shall be God’s house, and of all
that thou shalt give me, will I give the tenth unto thee.

Genesis 14:20

And blessed be the most high God, which hath delivered thine enemies into thy hand. And he gave him tithes [a tenth] of all.