Romans 8:28 is one of my favorite passages in scripture,because it tells of the blessed life one can live in the Lord!Notice it does not say a few things or even some,but ALL things work together for good to them that love God,to them who are the called according to His purpose.
There are so many lessons in just this one passage.We learn all things work together for our good,and if we love God it makes a difference.It is the life that is called to do Gods will and not our own.It is a purpose that can change the life of many.(Romans 9:11). (For the children being not yet born, neither having done any good or evil, that the purpose of God according to election might stand, not of works, but of him that calleth;)
From the very beginning in the garden of Eden man was given the choice to do the will of God or follow his own.A choice we all have to this day.By that choice we can live a blessed life or a cursed life,it is up to us.(Deuteronomy Chapter 28).
2 Timothy 1:9 Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began.