Tex. R. Civ. P. 236
As amended through February 20, 2024
The jury shall be sworn by the court or under its direction, in substance as follows: "You, and each of you, do solemnly swear that in all cases between parties which shall be to you submitted, you will a true verdict render, according to the law, as it may be given you in charge by the court, and to the evidence submitted to you under the rulings of the court. So help you God."
Tex. R. Civ. P. 236