Surely goodness and mercy shall follow me all the days of my life: and I will dwell in the house of the LORD for ever.
The word picture meaning for "shall follow" is "to open the highest way of life".
The key that opens the highest way of life is the goodness and mercy of God.
John 10:10 “The thief does not come except to steal, and to kill, and to destroy. I have come that they may have life, and that they may have it more abundantly.