The Text for this sermon is Jeremiah 12:5: "If thou hast run with the footmen, and they have wearied thee, then how canst thou contend with horses? and if in the land of peace, wherein thou trustedst, they wearied thee, then how wilt thou do in the swelling of Jordan?"
Here is another sermon on Jeremiah 12:5: What Will you Do When things Get Worse? by Dr. Ian Brown
