'Commandment' in the Bible

Ye leave the commandment of God, and hold fast the tradition of men.

And he said unto them, Full well do ye reject the commandment of God, that ye may keep your tradition.

But Jesus said unto them, For your hardness of heart he wrote you this commandment.

And one of the scribes came, and heard them questioning together, and knowing that he had answered them well, asked him, What commandment is the first of all?

The second is this, Thou shalt love thy neighbor as thyself. There is none other commandment greater than these.