The credit of the State shall not be pledged or loaned in aid of any person, association or corporation; and the State shall not become a stockholder in any corporation or association, nor assume, redeem, secure or pay any indebtedness or pretended indebtedness alleged to be due by the State of Mississippi, to any person, association or corporation whatsoever, claiming the same as owners, holders or assignees of any bond or bonds, now generally known as “Union Bank” bonds and “Planters' Bank” bonds.