The State Service Commissioner, the assistant service commissioner and each of the district service commissioners and county service commissioners shall, before entering into the duties of his office, subscribe and execute an oath of office. The State Service Commissioner and the assistant state service commissioner shall each execute and furnish a bond in the penal sum of $10,000, with sufficient surety to be approved by the State Board of Veterans' Affairs, conditioned upon the faithful performance of their official duties. Each district service commissioner and county service commissioner shall execute and furnish a bond in the penal sum of $5,000 with sufficient surety to be approved by the State Service Commissioner, conditioned upon the faithful performance of their official duties. The premium of all such bonds for officials in the department shall be paid by the State of Alabama.