diff --git a/act/17/09.md b/act/17/09.md
index 4a173c9cc7..6cadd955dd 100644
--- a/act/17/09.md
+++ b/act/17/09.md
@@ -6,7 +6,11 @@ Jason and the others had to pay the money to the city officials as a promise of
 
 The words "the rest" refers to other believers that the Jews brought before the officials.
 
-# they let them go
+# they took security ... they let them go
 
-"the officials let Jason and the other believers go"
+"the officials took security ... let Jason and the other believers go"
+
+# took security
+
+Jason and the others gave the money to the officials to show that they would not cause any more trouble. This was not a fine or a punishment, so they might have expected the officials to give the money back later.