God is faithful to the covenant. So faithful in fact, He promised to be our Comforter. “It is I, I am He Who comforts you.” – Isaiah 51:12. What does the Comforter do? He brings back the lost sheep from exile, and causes them to walk in faithfulness to God through the covenant.
Being described as a zealot is not normally a good thing in today’s culture. However, the good zealot is concerned with the relationship between God and His people, and acts out of love to eliminate that which causes separation.