'Command' in the Bible

Keep, my son, the command of thy father, And leave not the law of thy mother.

For a lamp is the command, And the law a light, And a way of life are reproofs of instruction,

In His setting for the sea its limit, And the waters transgress not His command, In His decreeing the foundations of earth,

Whoso is despising the Word is destroyed for it, And whoso is fearing the Command is repayed.

Whoso is keeping the command is keeping his soul, Whoso is despising His ways dieth.