Again he limiteth a certain day,.... Since the seventh day of the creation was a day of rest which God entered into, and not man; and since the land of Canaan was a typical rest, which the unbelieving Israelites did not enter into, because of unbelief; and yet there must be persons, and there must be a time for them to enter into the true rest which God has left a promise of; therefore he has limited, fixed, and appointed a certain day, the Gospel dispensation, for believers to enter into it:saying in David; or by David, who was the penman of the 95th psalm, as may be learned from hence; and this is agreeably to, and confirms a rule which the Jews give, that those psalms which are without a title were written by David ; the Spirit of God spake in him and by him, and plainly pointed out another day of rest from the above mentioned:today, after so long a time; as two thousand five hundred years from the first seventh day to the time of Moses, and five hundred years from the times of Moses and Joshua, to his:as it is said; the Alexandrian copy reads, "as it is before said", or, "above said", as the Vulgate Latin, and Syriac versions; that is, in Ps 95:7 before cited, Heb 3:7today if you will hear his voice, harden not your hearts;See Gill on "Heb 3:7",See Gill on "Heb 3:8".
Aben Ezra & Kimchi Praefat.