Westminster Shorter Catechism – Lord’s Day 27
Q & A 45
Q Which is the first commandment?
A The first commandment is, You shall have no other gods before me.*1
Q & A 46
Q What is required in the first commandment?
A The first commandment requires us to know and acknowledge God to be the only true God, and our God; and to worship and glorify him accordingly.*2
Q & A 47
Q What is forbidden in the first commandment?
A The first commandment forbids the denying,3 or not worshiping and glorifying, the true God as God,4 and our God;5 and the giving of that worship and glory to any other, which is due to him alone.6
Q & A 48
Q What are we specially taught by these words before me in the first commandment?
A These words before me in the first commandment teach us, that God, who sees all things, takes notice of, and is much displeased with, the sin of having any other God.*7
*1 Exodus 20:3; Deuteronomy 5:7.
*2 1 Chronicles 28:9; Isaiah 45:20-25; Matthew 4:10.
*3 Psalm 14:1.
*4 Romans 1:20-21.
*5 Psalm 81:10-11.
*6 Ezekiel 8:16-18; Romans 1:25.
*7 Deuteronomy 30:17-18; Psalm 44:20-21; Ezekiel 8:12.