Sec. 4. The bank may not:
(1) lend money other than to a qualified entity;
(2) purchase securities other than:
(A) a security to which a qualified entity is a party as issuer, borrower, or lessee; or
(B) an investment under section 3 of this chapter;
(3) deal in securities within the meaning of or subject to any securities law, securities exchange law, or securities dealers law of the United States of America or of the state or of any other state or jurisdiction, domestic or foreign, except as authorized in this article;
(4) emit bills of credit, or accept deposits of money for time or demand deposit, or administer trusts, or engage in any form or manner, or in the conduct of, any private or commercial banking business, or act as a savings bank or savings association, or any other kind of financial institution; or
(5) engage in any form of private or commercial banking business.