The State of Alaska’s revenue commissioner has resigned his post, citing a call to the clergy after long experience at state and local government jobs in Alaska.

Gov. Bill Walker announced that he had accepted Randy Hoffbeck’s letter of resignation in a statement Tuesday, saying he did so with “mixed emotions.” Hoffbeck had been on a medical mission in Kenya in late 2014, when Walker first asked him to join his cabinet.

“For three years, Randy has been an integral member of this administration, spearheading the state’s efforts to create a plan that steers Alaska toward a sustainable future,” Walker said in the statement. “Alaskans have benefited tremendously from Randy’s faithful service. While we in the administration will certainly miss Randy, I know that his wife, Cindy, his sons and two grandchildren will greatly appreciate that he can finally prioritize time with family.”

Hoffbeck has more than 30 years of experience in tax administration as well as the valuation and appraisal of real estate, Walker noted, including work for the state as a petroleum property assessor and at the North Slope Borough as chief financial officer and chief of staff. Hoffbeck briefly retired from government work in 2012, however, taking two years to complete a master of divinity degree.

“Although I consider the opportunity you have given me to serve in this capacity as a privilege, and to work with you as an honor, I feel that it is time for me to complete the call to ministry God has placed on my heart,” Hoffbeck wrote in his letter to Walker.

Hoffbeck told the Associated Press he had a sense of being done after the recent special session on oil and gas tax credits. He said he didn't have the energy to gear up for the next fight, but regretted not being able to deliver a complete fiscal plan for Alaska.

Hoffbeck’s resignation will be effective Aug. 17. The state’s deputy revenue commissioner, Jerry Burnett, will fill Hoffbeck’s position on an interim basis until Walker names a replacement.