This litany is but one idea for how to utilize the Heidelberg Catechism in worship. For more ideas see "Good for More Preaching".
I am the LORD your God,
who brought you out of Egypt,
out of the land of slavery.
You shall have no other gods before me.
I sincerely acknowledge the only true God,
trust him alone, look to him for every good
thing humbly and patiently, and love him,
fear him, and honor him with all my heart.
In short, I will give up anything rather than
go against his will in any way.
You shall not make for yourself an idol
in the form of anything in heaven above
or on the earth beneath
or in the waters below.
We will in no way make any image of God nor
worship him in any other way than he has
commanded in his Word.
You shall not misuse the name of the
LORD your God,
for the LORD will not hold anyone
guiltless
who misuses his name.
We will use the holy name of God only with reverence
and awe, so that we may properly confess him,
pray to him, and praise him in everything we do and say.
Remember the Sabbath day by keeping it holy.
I will regularly attend the assembly of God's
people to learn what God's Word teaches,
to participate in the sacraments, to pray to God
publicly, and to bring Christian offerings for the poor.
Every day of my life I will rest from my evil ways,
let the Lord work in me through his Spirit,
and so begin in this life the eternal Sabbath.
Honor your father and your mother.
I will honor, love, and be loyal to my father and mother.
I will obey and submit to them, as is proper, when they
correct and punish me; and I will be patient with their
failings—for through them God chooses to rule us.
You shall not murder.
I will not belittle, insult, hate, or kill my neighbor—not
by my thoughts, my words, my look or gesture, and
certainly not by actual deeds—and I will not be party
to this in others; rather, I will put away all desire for revenge.
I will not harm or recklessly endanger myself either.
You shall not commit adultery.
God condemns all unchastity.
We therefore thoroughly detest it and,
married or single, will live decentand chaste lives.
You shall not steal.
I will do whatever I can for my neighbor's good,
I will treat others as I would like them to treat me,
and I will work
faithfully so that I may share with those in need.
You shall not give false testimony against your neighbor.
I will love the truth, speak it candidly, and
openly acknowledge it.
And I will do what I can to guard
and advance my neighbor's good name.
You shall not covet anything that belongs to your neighbor.
With all my heart I will always hate sin and
take pleasure in whatever is right.