The Westminster Larger Catechism on the first commandment.

Question 103: Which is the first commandment?

Answer: The first commandment is, Thou shall have no other gods before me.

Question 104: What are the duties required in the first commandment?

Answer: The duties required in the first commandment are, the knowing and acknowledging of God to be the only true God, and our God; and to worship and glorify him accordingly, by thinking, meditating, remembering, highly esteeming, honoring, adoring, choosing, loving, desiring, fearing of him; believing him; trusting, hoping, delighting, rejoicing in him; being zealous for him; calling upon him, giving all praise and thanks, and yielding all obedience and submission to him with the whole man; being careful in all things to please him, and sorrowful when in anything he is offended; and walking humbly with him.

Question 105: What are the sins forbidden in the 1st commandment?

Answer: The sins forbidden in the first commandment are, atheism, in denying or not having a God; idolatry, in having or worshiping more gods than one, or any with or instead of the true God; the not having and avouching him for God, and our God; the omission or neglect of anything due to him, required in this commandment; ignorance, forgetfulness, misapprehensions, false opinions, unworthy and wicked thoughts of him; bold and curious searching into his secrets; all profaneness, hatred of God; self-love, self-seeking, and all other inordinate and immoderate setting of our mind, will, or affections upon other things, and taking them off from him in whole or in part; vain credulity, unbelief, heresy, misbelief, distrust, despair, incorrigibleness, and insensibleness under judgments, hardness of heart, pride, presumption, carnal security, tempting of God; using unlawful means, and trusting in lawful means; carnal delights and joys; corrupt, blind, and indiscreet zeal; lukewarmness, and deadness in the things of God; estranging ourselves, and apostatizing from God; praying, or giving any religious worship, to saints, angels, or any other creatures; all compacts and consulting with the devil, and hearkening to his suggestions; making men the lords of our faith and conscience; slighting and despising God and his commands; resisting and grieving of his Spirit, discontent and impatience at his dispensations, charging him foolishly for the evils he inflicts on us; and ascribing the praise of any good we either are, have, or can do, to fortune, idols, ourselves, or any other creature.

Question 106: What are we specially taught by these words before me in the first commandment?

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