The Law of Moses is detailed in Exodus, Leviticus and Deuteronomy, it was effectively a contractual agreement between God and Israel as Moses explains:-
Deuteronomy 29:9-13 Keep therefore the words of this covenant, and do them, that ye may prosper in all that ye do. Ye stand this day all of you before the LORD your God; your captains of your tribes, your elders, and your officers, with all the men of Israel, Your little ones, your wives, and thy stranger that is in thy camp, from the hewer of thy wood unto the drawer of thy water: That thou shouldest enter into covenant with the LORD thy God, and into his oath, which the LORD thy God maketh with thee this day: That he may establish thee to day for a people unto himself, and that he may be unto thee a God, as he hath said unto thee, and as he hath sworn unto thy fathers, to Abraham, to Isaac, and to Jacob.
Deuteronomy 26:16-19 This day the LORD thy God hath commanded thee to do these statutes and judgments: thou shalt therefore keep and do them with all thine heart, and with all thy soul. Thou hast avouched the LORD this day to be thy God, and to walk in his ways, and to keep his statutes, and his commandments, and his judgments, and to hearken unto his voice: And the LORD hath avouched thee this day to be his peculiar people, as he hath promised thee, and that thou shouldest keep all his commandments; And to make thee high above all nations which he hath made, in praise, and in name, and in honour; and that thou mayest be an holy people unto the LORD thy God, as he hath spoken.
There was a promise of blessings for obedience to the law, whilst national disobedience would bring curses; Israel’s occupancy of the land of Canaan and their personal wellbeing being at stake. Details are given in Deuteronomy 28 and summarised in Leviticus 26. Monumental stones were established on entry into the land, at Mt Gerizim and Mt Ebal near Shechem, as instructed by Moses (Deuteronomy 27),and fulfilled by Joshua (Joshua 8:30-35).
A summary of the law was given in 10 basic commandments which are given in Exodus 20:3-17
Thou shalt have no other gods before me.
Thou shalt not make unto thee any graven image, or any likeness of any thing that is in heaven above, or that is in the earth beneath, or that is in the water under the earth:
Thou shalt not bow down thyself to them, nor serve them: for I the LORD thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me;
And shewing mercy unto thousands of them that love me, and keep my commandments.
Thou shalt not take the name of the LORD thy God in vain; for the LORD will not hold him guiltless that taketh his name in vain.
Remember the sabbath day, to keep it holy. Six days shalt thou labour, and do all thy work:
But the seventh day is the sabbath of the LORD thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates:
For in six days the LORD made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the LORD blessed the sabbath day, and hallowed it.
Honour thy father and thy mother: that thy days may be long upon the land which the LORD thy God giveth thee.
Thou shalt not kill.
Thou shalt not commit adultery. Thou shalt not steal.
Thou shalt not bear false witness against thy neighbour.
Thou shalt not covet thy neighbour’s house, thou shalt not covet thy neighbour’s wife, nor his manservant, nor his maidservant, nor his ox, nor his ass, nor any thing that is thy neighbour’s.
These commandments written on tables of stone, were contained in the Ark, within the Most Holy Place of the tabernacle. This box is formally referred to as ‘the ark of the covenant’.
The Law of Moses is further summarised by Jesus Christ in Matthew 22:35-40 a lawyer, asked him a question, tempting him, and saying, Master, which is the great commandment in the law? Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind. This is the first and great commandment. And the second is like unto it, Thou shalt love thy neighbour as thyself. On these two commandments hang all the law and the prophets.