diff --git a/php/03/15.md b/php/03/15.md
index ffc1482a20..32ccfa493b 100644
--- a/php/03/15.md
+++ b/php/03/15.md
@@ -1,6 +1,6 @@
 # All of us who are mature, let us think this way
 
-"I encourage all of us believers who are strong in the faith to think the same way"
+"I encourage all of us believers who are strong in the faith to think the same way." The word "us" includes the believers that Paul was writing to.
 
 # God will also reveal that to you