Deuteronomy 27:1

1 And Moses and the elders of Israel commanded, saying, Keep all these commands, all that I command you this day.

Deuteronomy 27:1 Meaning and Commentary

Deuteronomy 27:1

And Moses, with the elders of Israel, commanded the people,
saying
The seventy elders, at the head of whom was Moses, which made the great sanhedrim, or council of the nation; Moses having recited all the laws of God to the people, these joined with him in an exhortation to them to observe and obey them:

keep all the commandments which I command you this day;
not in his own name, as being the supreme legislator, but in the name of the Lord, whom they had avouched to be their God and King, from whom he had received them.

Deuteronomy 27:1 In-Context

1 And Moses and the elders of Israel commanded, saying, Keep all these commands, all that I command you this day.
2 And it shall come to pass in the day when ye shall cross over Jordan into the land which the Lord thy God gives thee, that thou shalt set up for thyself great stones, and shalt plaster them with plaster.
3 And thou shalt write on these stones all the words of this law, as soon as ye have crossed Jordan, when ye are entered into the land, which the Lord God of thy fathers gives thee, a land flowing with milk and honey, according as the Lord God of thy fathers said to thee.
4 And it shall be as soon as ye are gone over Jordan, ye shall set up these stones, which I command thee this day, on mount Gaebal, and thou shalt plaster them with plaster.
5 And thou shalt build there an altar to the Lord thy God, an altar of stones; thou shalt not lift up iron upon it.

The Brenton translation of the Septuagint is in the public domain.