Hebrews 4:8

Ἰησοῦς, i.e. Joshua. The needless adoption of the Greek form of the name (“Jesus”) by the A.V. is here most unfortunately perplexing to uninstructed readers, as also in Acts 7:45.

κατέπαυσεν. He did, indeed, give them a rest and, in some sense (Deuteronomy 12:9), the rest partially and primarily intended (Joshua 23:1); but only a dim shadow of the true and final rest offered by Christ (Matthew 11:28; 2 Thessalonians 1:7; Revelation 14:13).

οὐκ ἂν … ἐλάλει. “He would not have been speaking.” The “He” is here Jehovah. The phrases applied to Scripture by the writer always imply his sense of its living power and ideal continuity. The words are as though they had just been uttered (“He hath said,” Hebrews 4:4) or were still being uttered (as here, and throughout). There is a similar mode of argument in Hebrews 7:11; Hebrews 8:4; Hebrews 8:7; Hebrews 11:15.