“Lysias was not without intelligence. He pondered over the defeat that had befallen him. He realized that the Hebrews were invincible because the mighty God fought on their side. Thus he sent to them and persuaded them to settle everything on just terms. He promised that he would persuade the king. He constrained the king to be their friend. Judas Maccabeus, having regard for the common good, agreed to all that Lysias urged. For the king granted every request on behalf of the Jews that Judas Maccabeus had delivered to Lysias in writing.”
The peace treaty with Lysias does not come until 2 chapters later in 1 Maccabees, chapter 6, after many more battles, with King Antiochus V. In 1 Maccabees, chapter 4, Lysias returned to Antioch because King Antiochus IV had died. He feared that Philip might take over. However, the resulting peace treaty was pretty much the same. Lysias realized that he could not defeat the Hebrews because their mighty God was on their side. He promised to persuade the king who was only 10 years old. Judas Maccabees got everything that he wanted. So now we have a peace treaty. Now we will have a series of letters concerning this peace treaty.