Hebrews 3:18

3:18 And to whom did he swear they would never enter into his rest, except those who were disobedient?

Hebrews 6:16

6:16 For people ¹  swear by something greater than themselves, ²  and the oath serves as a confirmation to end all dispute. ³ 

[6:16]  ¹ 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]  ² tn Grk “by something greater”; the rest of the comparison (“than themselves”) is implied.

[6:16]  ³ tn Grk “the oath for confirmation is an end of all dispute.”