Hebrews 4:7

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 F7 Aben Ezra & Kimchi Praefat. in Tillim. ; 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 Psalm 95:7 before cited, Hebrews 3:7

today if you will hear his voice, harden not your hearts ; See Gill on Hebrews 3:7 , Hebrews 3:8 .