1. He is a predestinarian preacher who firmly believes in the concept of predestination.
他是一位坚定信奉预定论的传教士，对预定论这一概念深信不疑。

2. Some religious sects are predestinarian in their beliefs, believing that one's destiny is predetermined by a higher power.
一些宗教教派在信仰上属于预定论者，认为人的命运是由高于个体的力量预先决定的。