The Holy Bible, II Timothy 3:16-17, "All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work."
The teachings which cause people to behave are the 10 Commandments given to the Jews. Because of various religous or denominational or secular beliefs the first 4 commandments may be kept or may not be kept at all, or changed, or ignored.
Because the first 4 are theocratic, obviously, if you don't believe in God you won't want to obey the first 4.
3 " You shall have no other gods before Me.
4 " You shall not make for yourself a carved image --- any likeness of anything that is in heaven above, or that is in the earth beneath, or that is in the water under the earth;
5 you shall not bow down to them nor serve them. For I, the LORD your God, am a jealous God, visiting the iniquity of the fathers upon the children to the third and fourth generations of those who hate Me,
6 but showing mercy to thousands, to those who love Me and keep My commandments.
7 " You shall not take the name of the LORD your God in vain, for the LORD will not hold him guiltless who takes His name in vain.
8 " Remember the Sabbath day, to keep it holy.
9 Six days you shall labor and do all your work,
10 but the seventh day is the Sabbath of the LORD your God. In it you shall do no work: you, nor your son, nor your daughter, nor your male servant, nor your female servant, nor your cattle, nor your stranger who is within your gates.
11 For in six days the LORD made the heavens and the earth, the sea, and all that is in them, and rested the seventh day. Therefore the LORD blessed the Sabbath day and hallowed it.
All cultures have a 7-day week, usually with one day more-special than the others. For the Jews and some Christian groups this special day is the Saturday Sabbath, for Christianity as a whole it is Sunday instead, for some Christian groups it is both Saturday Sabbath and Sunday, while
for Moslems it is Friday.
However, the last 6 Commandments are followed in all cultures to some degree or another.
Honor and respect your parents :-
12 " Honor your father and your mother, that your days may be long upon the land which the LORD your God is giving you.
Although some cultures may now give honour to their parents today more in the breech than the observance, (when historically they used to), in other cultures today it is a sign of desrespect both to them and to the family , and woe betide you if you break it. Eg honour killings
Laws against murder:-
13 " You shall not murder.
(This is a codified crime in all cultures.)
Laws against adultery:-
14 " You shall not commit adultery.
(This may be unenforceable, but it is a codified crime in all cultures.)
Laws against stealing:-
15 " You shall not steal.
(This is a codified crime in all cultures)
Laws against lying in court:-
16 " You shall not bear false witness against your neighbor.
(This is a codified crime in most cultures)
Want something that belongs to others.
17 " You shall not covet your neighbor's house; you shall not covet your neighbor's wife, nor his male servant, nor his female servant, nor his ox, nor his donkey, nor anything that is your neighbor's."
This commandment cannot be codified or enforced, but the breaking of it will be seen and can be enforced.