Adam Clarke's Commentary on the Bible - Hebrews 8:12
I will be merciful to their unrighteousness - In order to be their God, as mentioned under the preceding verse, it is requisite that their iniquity should be pardoned; this is provided for by the immolation of Jesus Christ as the covenant sacrifice. By his blood, redemption has been purchased, and all who with penitent hearts believe on the Lord Jesus receive remission of sins, and God remembers their iniquities no more against them so as to punish them on that account. All spiritual evil... read more
Adam Clarke's Commentary on the Bible - Hebrews 8:11
They shall not teach every man his neighbor - Under the old covenant, properly speaking, there was no public instruction; before the erection of synagogues all worship was confined at first to the tabernacle, afterwards to the temple. When synagogues were established they were used principally for the bare reading of the law and the prophets; and scarcely any such thing as a public ministry for the continual instruction of the common people was found in the land till the time of John the... read more