By definition, "redound" means ”to contribute   honor  on a recipient”.

 It all begins with God, as all things  righteous  do.

 God is righteousness  and He demonstrates  this by saving all mankind, and in justifying   all the sins of man.  Which figures, because the last sin is “death”.

 The first “redound” occurrs when  Jesus sacrifices Himself on the “cross”.

In doing so,  He increases the righteousness of God,  by demonstrating  His faith that God will  fullfill His promise to resurresct  Him.

 Because of His faith,  righteousness redounds to God, His father.

 Paul says that  “righteousness” comes to all “believers”, because  we believe that  God  will save all mankind, and that all sins have been justified.   In doing so,  honor  redounds   to God,  thus increasing His righteousness.

I know that it’s hard to believe that  we insignificant humans  could  be the cause of  redounding to our Lord and master,  but Paul says it’s so,  and I can see how it’s possible, when we  realize that our faith reflects honorably on God. 

 So, it would  trac that  the more  who believe , the greater is God’s righteousness.  Ultimately,  we are told that all will bow to the Christ,  sigfnifying that all mankind  have faith and believe in God.

 But we were chosen by God,  before the  disruption of the world.  We don’t have to wait for the Christ to come,  because we’re already a part of His body.    Through God’s grace,  we  have the faith, now, and are comforted,  now,   by knowing   that God will do as He promises..we believe..bobnpaul