Hebrews 2:2

2:2 For if the message spoken through angels ¹  proved to be so firm that every violation ²  or disobedience received its just penalty,

Hebrews 6:16

6:16 For people ³  swear by something greater than themselves, ⁴  and the oath serves as a confirmation to end all dispute. ⁵ 

Hebrews 12:4

12:4 You have not yet resisted to the point of bloodshed ⁶  in your struggle against sin.

[2:2]  ¹ sn The message spoken through angels refers to the OT law, which according to Jewish tradition was mediated to Moses through angels (cf. Deut 33:2; Ps 68:17-18; Acts 7:38, 53; Gal 3:19; and Jub. 1:27, 29; Josephus, Ant. 15.5.3 [15.136]).

[2:2]  ² tn Grk “through angels became valid and every violation.”

[6:16]  ³ tn The plural Greek term ἄνθρωποι (anqrwpoi) is used here in a generic sense, referring to both men and women, and is thus translated “people.”

[6:16]  ⁴ tn Grk “by something greater”; the rest of the comparison (“than themselves”) is implied.

[6:16]  ⁵ tn Grk “the oath for confirmation is an end of all dispute.”

[12:4]  ⁵ tn Grk “until blood.”