Hebrews 12:10

12:10 For they disciplined us for a little while as seemed good to them, but he does so for our benefit, that we may share his holiness.

Hebrews 13:21

13:21 equip you with every good thing to do his will, working in us ¹  what is pleasing before him through Jesus Christ, to whom be glory forever. ²  Amen.

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¹ tc Some mss (C P Ψ 6 629* 630 1505 pm latt sy^h) read ὑμῖν (Jumin, “in you”) here, but ἡμῖν (Jhmin) has stronger external support (Ì⁴⁶ א A D^vid K 0243 0285 33 81 104 326 365 629^c 1175 1739 1881 pm sy^p co). It is also more likely that ἡμῖν would have been changed to ὑμῖν in light of the “you” which occurs at the beginning of the verse than vice versa.

² tc ‡ Most mss (א A [C*] 0243 0285 33 1739 1881 Ï latt) include the words “and ever” here, but the shorter reading (supported by Ì⁴⁶ C³ D Ψ 6 104 365 1505 al) is preferred on internal grounds. It seemed more likely that scribes would assimilate the wording to the common NT doxological expression “for ever and ever,” found especially in the Apocalypse (cf., e.g., 1 Tim 1:17; 2 Tim 4:18; Rev 4:9; 22:5) than to the “forever” of Heb 13:8. Nevertheless, a decision is difficult here. NA²⁷ places the phrase in brackets, indicating doubts as to its authenticity.