But those gentlemen who went forth from the lay life to homelessness out of faith … You should speak to them. Sāriputta, you should advise your spiritual companions! You should instruct your spiritual companions! Thinking: ‘I will draw my spiritual companions away from false teachings and ground them in true teachings.’ That’s how you should train.”

Numbered Discourses 5.168 17. Resentment Ethics

There Venerable Sāriputta addressed the mendicants:

“Reverends, an unethical person, who lacks ethics, has destroyed a vital condition for right immersion. When there is no right immersion, one who lacks right immersion has destroyed a vital condition for true knowledge and vision. When there is no true knowledge and vision, one who lacks true knowledge and vision has destroyed a vital condition for disillusionment and dispassion. When there is no disillusionment and dispassion, one who lacks disillusionment and dispassion has destroyed a vital condition for knowledge and vision of freedom.

Suppose there was a tree that lacked branches and foliage. Its shoots, bark, softwood, and heartwood would not grow to fullness.

In the same way, an unethical person, who lacks ethics, has destroyed a vital condition for right immersion. When there is no right immersion, one who lacks right immersion has destroyed a vital condition for true knowledge and vision. When there is no true knowledge and vision, one who lacks true knowledge and vision has destroyed a vital condition for disillusionment and dispassion. When there is no disillusionment and dispassion, one who lacks disillusionment and dispassion has destroyed a vital condition for knowledge and vision of freedom.