en_tn_condensed/act/15/05.md

General Information:

Here the word "them" refers to non-Jewish believers who were not circumcised and did not keep the Old Testament laws of God.

Connecting Statement:

Paul and Barnabas are now in Jerusalem to meet with the apostles and elders there.

But certain men

Here Luke contrasts those who believe that salvation is only in Jesus to others who believe salvation is by Jesus yet also believe that circumcision is required for salvation.

to keep the law of Moses

"to obey the law of Moses"