'Commandment' in the Bible

My son, keep the commandment of thy father, And forsake not the law of thy mother:

For the commandment is a lamp; and the law is light; And reproofs of instruction are the way of life:

When he gave to the sea its bound, That the waters should not transgress his commandment, When he marked out the foundations of the earth;

Whoso despiseth the word bringeth destruction on himself; But he that feareth the commandment shall be rewarded.

He that keepeth the commandment keepeth his soul; But he that is careless of his ways shall die.