Sirach 6:29

29 Then shall her fetters be a strong defence for thee, and her chains a robe of glory.

Sirach 6:29 In-Context

27 Search, and seek, and she shall be made known unto thee: and when thou hast got hold of her, let her not go.
28 For at the last thou shalt find her rest, and that shall be turned to thy joy.
29 Then shall her fetters be a strong defence for thee, and her chains a robe of glory.
30 For there is a golden ornament upon her, and her bands are purple lace.
31 Thou shalt put her on as a robe of honour, and shalt put her about thee as a crown of joy.

The Brenton translation of the Septuagint is in the public domain.