In January 2022, Houston stepped aside from his roles within the church, after being criminally charged in Australia for allegedly concealing sexual abuse of a child by his father, of which he became aware in the 1990s.

[5]: 66  Shortly after completing college he met his future wife, Bobbie, on Papamoa Beach in New Zealand during a Christian convention.

In May 1997, Houston was elected the president of the Assemblies of God in Australia (now called Australian Christian Churches) after the retirement of Andrew Evans.

[15] On 5 August 2021, New South Wales Police issued a warrant for Houston's arrest, alleging that he concealed child sexual abuse by his father, Frank.

Houston was in the United States at the time of being charged and resigned from the church's board as a result of his arrest.

[16] In March 2022, Houston resigned his position as senior global pastor after an internal investigation into his conduct with two women connected to the church.

Houston's statement and the evidence submitted to the commission revealed that, in November 1999, his father confessed to child sexual abuse.

[29][30] The royal commission censured Houston for his failure to report the sexual abuse allegations against his father and for his failure to avoid a clear conflict of interest investigating his own father while serving as national president of the Assemblies of God in Australia.

[31][32][33][30] On 5 August 2021, NSW Police issued a warrant for Houston to attend the Downing Centre Local Court in Sydney on 5 October, alleging that he concealed child sexual abuse by his father.

Houston was in the United States at the time of being charged and resigned from the church's board as a result of his arrest.