Commentaries:
Robertson's Word Pictures (NT)
That they should not enter (mh eiseleusesqai). Negative mh (cf. ei in verse Hebrews 3:11) and the future middle infinitive in indirect discourse.
To them that were disobedient (toiv apeiqhsasin). Dative masculine plural of the articular first aorist active participle of apeiqew, active disobedience with which compare apistiav in verse Hebrews 3:12, Hebrews 3:19.
Other Robertson's Word Pictures (NT) entries containing Hebrews 3:18:
Hebrews 3:7
Hebrews 3:16
Hebrews 4:11
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.