Episode 279 - why do we look for a sign?

In Genesis we see the birth of Cain and Abel. Abel, keeper of flocks finds favor before God; not so for Cain, tiller of the soil. The Lord sister Kay not to be resentful, to keep his head up in hardship, to practice being masterful. But Cain kills his brother. Lack of faith is based on lack of understanding on the basis of the relationship with God. Jesus is tested by the Pharisees, who seek a sign because they have no faith