Here’s one of the prayers that Bonhoeffer wrote in 1943 while in prison. He composed it, along with several others, to spiritually encourage those imprisoned with him:
Early in the morning do I cry unto thee.
Help me to pray,
And to think only of Thee.
I cannot pray alone.
In me there is darkness,
But with Thee there is light.
I am lonely, but Thou leavest me not.
I am feeble in heart, but with Thee there is peace.
In me there is bitterness, but with Thee there is patience.
Thy ways are past understanding, but
Thou knowest the way for me.”
Praise God that He never abandons His own. He has given us His Spirit to dwell intimately within us, to comfort us, and to lead us into the way everlasting. Through Him, the Father provides us with love, joy, peace, patience, kindness, gentleness, and self-control. He brings the fruit of His saving and sustaining grace to bear in our lives, even in the midst of dark providence and pain. And, it is His Spirit that draws us near to Christ our Advocate and Savior who intercedes for us!! May we experience joy as a result of the One who groans with us, in our deepest pain and sorrow, and leads us to everlasting joy that transcends our circumstances. Thank you, God, for the example of our brother, Bonhoeffer, and the God-ward legacy that he left in a dark and wicked world.
 Eric Metaxas, Bonhoeffer: Pastor, Martyr, Prophet, Spy (Nashville: Thomas Nelson, Inc., 2010), 448-449.