This episode begins a four part series looking into the instances of infertility in the Bible. Abraham and Sarah were called by God and given a specific promise to have a son despite their problem: they were childless. Their lives were a journey of faith as they learned to trust, obey, and wait on God. While we have not been given a specific promise for children, there is much we can learn from the lives of Abraham and Sarah as we seek to live by faith through the trials we face.