revealing ¹  that you are a letter of Christ, delivered by us, ²  written not with ink but by the Spirit of the living God, not on stone tablets ³  but on tablets of human hearts.

In addition, ¹  this brother ²  has also been chosen by the churches as our traveling companion as we administer this generous gift ³  to the glory of the Lord himself and to show our readiness to help. ⁴ 

You are looking at outward appearances. ¹  If anyone is confident that he belongs to Christ, he should reflect on this again: Just as he himself belongs to Christ, so too do we.