The Eagles overcame a 14-point deficit and a 59-yard interception return for a touchdown from Jaguars safety Andre Cisco to finish the first half with a 20-14 lead.
Philadelphia withstood injuries to Darius Slay and Jordan Mailata.
At the same time, Jalen Hurts spread the ball to six different receivers as the Eagles found their footing after a sloppy start at rainy Lincoln Financial Field.
Here are seven takeaways from the first half.