'Commandment' in the Bible

My son, observe thy father's commandment, and forsake not the teaching of thy mother;

For the commandment is a lamp, and the teaching a light, and reproofs of instruction are the way of life:

when he imposed on the sea his decree that the waters should not pass his commandment, when he appointed the foundations of the earth:

Whoso despiseth the word shall be held by it; but he that feareth the commandment shall be rewarded.

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