Article 1, Section 2, Clause 1

Document 8

Vermont Constitution of 1786, CH. 2, ART. 18

XVIII. Every man, of the full age of twenty-one years, having resided in this State, for the space of one whole year, next before the election of representatives, and is of a quiet and peaceable behaviour, and will take the following oath, (or affirmation) shall be entitled to all the privileges of a freeman of this State.

You solemnly swear, (or affirm) that whenever you give your vote or suffrage, touching any matter that concerns the State of Vermont, you will do it so as in your conscience you shall judge will most conduce to the best good of the same, as established by the Constitution, without fear or favour of any man.

The Founders' Constitution
Volume 2, Article 1, Section 2, Clause 1, Document 8
http://press-pubs.uchicago.edu/founders/documents/a1_2_1s8.html
The University of Chicago Press

Thorpe, Francis Newton, ed. The Federal and State Constitutions, Colonial Charters, and Other Organic Laws of the States, Territories, and Colonies Now or Heretofore Forming the United States of America. 7 vols. Washington, D.C.: Government Printing Office, 1909.