Constitution of the State of Ohio Art. VIII, § 2

In addition to the above limited power, the state may contract debts to repel invasion, suppress insurrection, defend the state in war, or to redeem the present outstanding indebtedness of the state; but the money, arising from the contracting of such debts, shall be applied to the purpose for which it was raised, or to repay such debts, and to no other purpose whatever; and all debts, incurred to redeem the present outstanding indebtedness of the state, shall be so contracted as to be payable by the sinking fund, hereinafter provided for, as the same shall accumulate.