The Holy Knight is a special profession, and its strength entirely depends on the power of the deity it serves.
The God of Light is clearly a powerful deity; therefore, the divine spells wielded by His Holy Knights are also immensely powerful, making the Knights of the Holy Light one of the most formidable among all Holy Knights.
Song Jian offered three hundred acres of land in the City of Hope, as well as the right for the God of Light to preach there, and the reward was three hundred Knights of the Holy Light. Whether used to help defend the city or to serve as occupational instructors, these three hundred Knights of the Holy Light would be tremendously valuable.
Of course, a temple is not just made up of knights; it also has corresponding priests who would issue some special tasks, some of which could even lead to receiving the priests' inheritance. For Song Jian, this was naturally another unexpected delight.