Fix Our Hearts with Steadfast Faith

Merciful and eternal God,
you did not spare your only Son
but gave him up for us all
that he might bear our sins on the cross.
Grant that our hearts may be so fixed
with steadfast faith in him
that we may not fear any trouble;
through your Son, Jesus Christ our Lord.
Amen.

Source: Saxon Agenda 1540, LXII (B)

This prayer is from Prayers from the Evangelical-Lutheran Heritage, available from Amazon.com, and also available for Amazon Kindle. It is a collection of prayers from the history of the Evangelical-Lutheran Church from Luther to Loehe. The collection includes prayers by Johannes Bugenhagen, Georg C. Dieffenbach, Veit Dietrich, Matthias Flacius, Wilhelm Loehe, Martin Luther, Philip Melanchthon, Joachim Mynsinger, Johann G. Olearius, Johann Jacob Rambach, and the early agendas and prayer books of the Austrian, Brunswick, Hamburg, Lueneberg, Norwegian, Nuremberg, Pomeranian, Riga, Russian, Saxon, Schleswig-Holstein, and Swedish Evangelical-Lutheran churches.