No municipality is to incur any obligation not payable from proceeds of bonds; exemption from taxation

Nothing in this article contained shall be so construed as to authorize or permit any municipality or municipalities to make any contract or incur any obligation of any kind or nature, except such as shall be discharged or payable solely from the funds provided under the authority of this article. Funds for the payment of the entire cost of the works shall be provided by the issuance of revenue bonds of the municipality or municipalities, the principal and interest of which bonds shall be payable solely from the special fund for such payment herein provided for, and said bonds shall not in any respect be a corporate indebtedness of such municipality or municipalities. All such bonds and the interest thereon, and all properties and revenues and income derived from such municipal public works, shall be exempt from all taxation by this state, or any county, municipality, political subdivision or agency thereof. All of the details of such bonds and the issuance thereof shall be determined by ordinance of the governing body or bodies.