大乘起信論義記 3.339

3.339

三者、發起善根增長方便。謂勤供養、禮拜三寶，讚歎、隨喜、勸請諸佛，以愛敬三寶淳厚心故，信得增長，乃能志求無上之道。又因佛法僧力所護故，能消業障，善根不退，以隨順法性離癡障故。

The third is the skillful means of initiating and increasing wholesome roots. This means diligently making offerings to and paying homage to the three jewels, praising, rejoicing in, and entreating all buddhas; because of a sincere and deep mind that cherishes and reveres the three jewels, faith is able to increase, and only then can one resolutely seek the unexcelled path. Furthermore, being protected by the power of the Buddha, Dharma, and Saṅgha, one is able to eliminate karmic obstacles and cause wholesome roots not to retrogress, because of conforming to dharmatā and being free from the obstacle of delusion.