I’ve written a couple of pieces of liturgy for our 1 John sermon series. Feel free to use and adapt if you like:
Call to confession from 1 John
The light of God exposes all sin and evil
and by his Spirit, God calls us all to confess our sins to him
in penitence and faith.
If we claim to be without sin,
we deceive ourselves and the truth is not in us.
If we confess our sins,
he is faithful and just and will forgive us our sins
and purify us from all unrighteousness.
If we claim we have not sinned,
we make him out to be a liar
and his word has no place in our lives.
Confession from 1 John
Lord Jesus, we all want to know you
as you really are.
We want to know your word and your Spirit,
your death and your resurrection.
We want to know your love and your life,
your forgiveness and your purity.
In the glare of your light, oh Lord,
we cannot claim to be without sin,
we cannot lie to you or to each other,
and so we confess our sins to you now.
Thank you that you cleanse us from all unrighteousness,
by the blood of Jesus.
Please help us to confess to each other,
those things which you have brought to light,
so that we might enjoy true fellowship with you
and with one another.
Blessing from 1 John
May the God who saved us from sin
keep us from sinning.
May the God who called us into fellowship,
keep us in fellowship.
May we know complete forgiveness in Christ
and remain pure in all that we do.
Just as in love, God turned his anger from us
so may we in love turn our anger from each other
All for the sake of Christ our Lord.