Deuteronomy 27:6

6 and of stones unformed and unpolished; and thou shalt offer thereon burnt sacrifices to thy Lord God; (yea, of unformed and unpolished stones; and thou shalt offer burnt sacrifices on it to the Lord thy God;)

Deuteronomy 27:6 Meaning and Commentary

Deuteronomy 27:6

Thou shall build the altar of the Lord thy God of whole
stones
And of such Joshua did build it, ( Joshua 8:31 ) ;

and thou shalt offer burnt offerings thereon unto the Lord thy God;
and very likely sin offerings too; for these frequently went together, the one to make atonement for sin, and the other as a gift, and by way of thankfulness for the acceptance of the former; and both typical of Christ, the true sacrifice, and the antitype of all the legal sacrifices.

Deuteronomy 27:6 In-Context

4 Therefore when thou hast passed (the) Jordan, raise thou up the stones which I command today to thee, in the hill of Ebal; and thou shalt make them plane with chalk. (And so when thou hast crossed over the Jordan River, raise thou up these stones on Mount Ebal, as I command to thee today, and thou shalt make them plane with chalk.)

5 And there thou shalt build an altar to thy Lord God, of stones which iron touched not, (And thou shalt build an altar there to the Lord thy God, out of stones which iron hath not touched,)

6 and of stones unformed and unpolished; and thou shalt offer thereon burnt sacrifices to thy Lord God; (yea, of unformed and unpolished stones; and thou shalt offer burnt sacrifices on it to the Lord thy God;)

7 and thou shalt offer peaceable sacrifices, and thou shalt eat there, and thou shalt make feast before thy Lord God. (and thou shalt offer peace offerings, and thou shalt eat them there, and thou shalt make a feast before the Lord thy God.)

8 And thou shalt write plainly and clearly on the stones all the words of this law. (And thou shalt write all the words of this law, clearly and plainly upon those stones.)