Of course we have to seek reconciliation with others, and with the Church, but mostly and firstly with God!  

Reconciliation is much much bigger and grander and better than mere person-to-person apologies. 

And we cannot think that some failure of a person is only theirs.

In the Communion of Saints there is a supernatural plane of action - of grace and sin - that influences each of us. 

A prayer or fast offered by someone in the Phillipines 10 years ago, can have influence in my life or your life today.   We simply don't know how God enables the distribution of graces. 

My faithfulness or lack of it affects others in ways we can't possibly know.  Your prayers affect supernatural action you and I can't imagine.   We need more faith in God's actions and love for sure, yes?

This is the larger view of what ALL of Scripture tells us, vs. some short proof text.