Don't worry about a thing! Should anything arise to cause concern (as will inevitably happen as you have to suffer many setbacks in this life on earth), this is how you should react: do not try to overcome your sorrow by yourself whatever the worry may happen to be, but instead, leave the matter alone and turn to God in prayer and supplication and ask Him to carry out the intentions contained in your worries instead of you yourself worrying about everything. (...) However, any one who does not act in this way when confronted with adversity, but, instead, applies his own reason to the matter and tries to deal with it by using his own understanding, he will merely increase his sorrows, lose his peace and joy in God and will achieve nothing. In addition, he will only end up digging into sand into which he will sink further and further and never escape. This is what we see every day both with regard to our own experiences and to other people’s.
Schriften, 10.I. 2. Band, S. 182
