What doth the preface to the ten commandments teach us? – Shorter Westminster Catechism

The preface to the ten commandments teacheth us, That because God is the Lord, and our God, and Redeemer, therefore we are bound to keep all his commandments.

Shorter Westminster Catechism

What is the preface to the ten commandments? – Shorter Westminster Catechism

Which is the first commandment? – Shorter Westminster Catechism