Exhibit 23.4

Consent of Independent Auditor

We consent to the inclusion in this Registration Statement on Form S-4 of Spirit of Texas Bancshares, Inc. of our report dated March 21, 2017 relating to our audit of the consolidated financial statements of First Beeville Financial Corporation as of and for the year ended December 31, 2016. We also consent to the reference to our firm under the heading “Experts” in this Registration Statement on Form S-4.

Bumgardner, Morrison & Company, LLP

Victoria, Texas

January 10, 2019

Bumgardner, Morrison & Company, LLP		1501 E Mockingbird Lane, Suite 300 PO Box 3750 Victoria, Texas 77903-3750 Phone: 361.575.0271 Fax: 361.578.0880 Website: BMCcpa.com
Certified Public Accountants
Members:	American Institute of Certified Public Accountants
	Texas Society of Certified Public Accountants
	AICPA Private Companies Practice Section
	AICPA Employee Benefit Plan Audit Quality Center
	AICPA Government Audit Quality Center