Q: Which is the eighth commandment?
A: The eighth commandment is, Thou shalt not steal.

Q: What is required in the eighth commandment.
A: The eighth commandment requireth the lawful procuring and furthering the wealth and outward estate of ourselves and others.

Q: What is forbidden in the eighth commandment?
A: The eighth commandment forbiddeth whatsoever doth or may unjustly hinder our own or our neighbour’s wealth or outward estate.

(Questions LXXIII, LXXIV and LXXV from the Westminster Shorter Catechism.)