Although many Jews did not believe the gospel and many non-Jews did, everyone who calls on the name of the Lord will be saved.
Continuing the final conversation with his disciples in John 14:15-31, Jesus told them how to show their love for him and of the gifts...
When Israel reached Mount Sinai, God showed that he would provide all they needed.
The church in Thessalonica not only followed worthy examples but also became one itself.