Requital~=siregun.
It's wrong

Payment of tithe covers everything that you can classify as an income or a blessing from the Lord. If you are employed and you earn a monthly salary, you owe God the tenth of your salary.
If in addition to your regular employment you run a private commercial business in the evening after work, you owe God Tithes on the income from this additional business which is an additional blessing. You also pay tithe on the gifts you receive.

God bless us all as his spirit leads us

A tithe is a tenth. The tenth part of your income. You don’t owe God any tithes until he has given you a blessing in form of an income, a gift, wage earning, salary, commission, profit, produce from your farm or any other blessing he brings your way.

Abraham paid tithes on all the spoils from the battle field.
“And Melchizedek king of Salem brought forth bread and wine: and he was the priest of the most high God. And he blessed him, and said, Blessed be Abram of the most high God, possessor of heaven and earth: And blessed be the most high God, which hath delivered thine enemies into thy hand. And he gave him tithes of all.” (Genesis 14:18 -20)