General Provisions Section 9 of the Constitution of the Republic of Texas states: "All persons of color who were slaves for life previous to their emigration to Texas, and who are now held in bondage, shall remain in the like state of servitude: Provided, The said slave shall be the bona-fide property of the person so holding said slave as aforesaid. Congress shall pass no laws to prohibit emigrants from bringing their slaves into the republic with them, and holding them by the same tenure by which such slaves were held in the United States; nor shall congress have power to emancipate slaves; nor shall any slaveholder be allowed to emancipate his or her slave or slaves without the consent of congress, unless he or she shall send his or her slave or slaves without the limits of the republic. No free person of African descent, either in whole or in part, shall be permitted to reside permanently in the republic without the consent of congress; and the importation or admission of Africans or negroes into this republic, excepting from the United States of America, is forever prohibited, and declared to be piracy."
Texas (Republic). Secretary of State. Laws of the Republic of Texas, in two volumes. Volume 01., book, 1838; (texashistory.unt.edu/ark:/67531/metapth45356/m1/19/?q=%22General%20Provisions%22: accessed June 23, 2016), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .