SN 3.5 - SN 3:5 Self-protected | Atta-rakkhita Sutta
Translated by Ṭhānissaro Bhikkhu
Source: https://www.dhammatalks.org/suttas/SN/SN3_5.html
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Copyright: Copyright 2014 Ṭhānissaro Bhikkhu, Revised edition 2017
License notice: Copyright 2014 Ṭhānissaro Bhikkhu, Revised edition 2017 This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 Unported. To see a copy of this license visit http://creativecommons.org/licenses/by-nc/4.0/. “Commercial” shall mean any sale, whether for commercial or non-profit purposes or entities. Questions about this book may be addressed to Metta Forest Monastery Valley Center, CA 92082-1409 U.S.A. Additional resources More Dhamma talks, books and translations by Ṭhānissaro Bhikkhu are available to download in digital audio and various ebook formats at dhammatalks.org. Printed copy A paperback copy of this book is available free of charge. To request one, write to: Book Request, Metta Forest Monastery, PO Box 1409, Valley Center, CA 92082 USA.
Attribution: From Handful of Leaves, Ṭhānissaro Bhikkhu; https://www.dhammatalks.org/Archive/Writings/Ebooks/SuttaPitaka_251113.epub. Copyright 2014 Ṭhānissaro Bhikkhu, Revised edition 2017 This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 Unported. To see a copy of this license visit http://creativecommons.org/licenses/by-nc/4.0/. “Commercial” shall mean any sale, whether for commercial or non-profit purposes or entities. Questions about this book may be addressed to Metta Forest Monastery Valley Center, CA 92082-1409 U.S.A. Additional resources More Dhamma talks, books and translations by Ṭhānissaro Bhikkhu are available to download in digital audio and various ebook formats at dhammatalks.org. Printed copy A paperback copy of this book is available free of charge. To request one, write to: Book Request, Metta Forest Monastery, PO Box 1409, Valley Center, CA 92082 USA.
Publisher references (not part of the sutta): See also: AN 3:110; AN 4:128; AN 10:17; AN 11:16; Khp 5
Changes: Presentation only: original HTML markup reflowed into plain text; wording, numbering and source repetitions retained. No repetitions expanded.
Completeness: ABBREVIATED. Every source-unit character is preserved, including introductions, notes and verse structure. Thanissaro's collection-level note explicitly states that repetitions were cut: https://www.dhammatalks.org/suttas/about.html. This is evidence about the translation method, not an assertion that every individual unit contains an omission; no repetitions reconstructed.

Self-protected
 Atta-rakkhita Sutta (SN 3:5)

Near Sāvatthī. As he was sitting to one side, King Pasenadi Kosala said to the Blessed One: “Just now, lord, while I was alone in seclusion, this train of thought arose in my awareness: ‘Who have themselves protected, and who leave themselves unprotected?’ Then it occurred to me: ‘Those who engage in bodily misconduct, verbal misconduct, & mental misconduct leave themselves unprotected. Even though a squadron of elephant troops might protect them, a squadron of cavalry troops, a squadron of chariot troops, a squadron of infantry troops might protect them, still they leave themselves unprotected. Why is that? Because that’s an external protection, not an internal one. Therefore they leave themselves unprotected. But those who engage in good bodily conduct, good verbal conduct, & good mental conduct have themselves protected. Even though neither a squadron of elephant troops, a squadron of cavalry troops, a squadron of chariot troops, nor a squadron of infantry troops might protect them, still they have themselves protected. Why is that? Because that’s an internal protection, not an external one. Therefore they have themselves protected.’”

“That’s the way it is, great king! That’s the way it is! Those who engage in bodily misconduct, verbal misconduct, & mental misconduct leave themselves unprotected. Even though a squadron of elephant troops might protect them, a squadron of cavalry troops, a squadron of chariot troops, a squadron of infantry troops might protect them, still they leave themselves unprotected. Why is that? Because that’s an external protection, not an internal one. Therefore they leave themselves unprotected. But those who engage in good bodily conduct, good verbal conduct, & good mental conduct have themselves protected. Even though neither a squadron of elephant troops, a squadron of cavalry troops, a squadron of chariot troops, nor a squadron of infantry troops might protect them, still they have themselves protected. Why is that? Because that’s an internal protection, not an external one. Therefore they have themselves protected.”

That is what the Blessed One said. Having said that, the One Well-Gone, the Teacher, said further:

“Restraint with the body is good,
good is restraint with speech.
Restraint with the heart is good,
good is restraint everywhere.
Restrained everywhere,
  conscientious,
one is said to be
      protected.”