Israeli security is among the most thorough in the world. At Ben Gurion Airport, expect to be asked direct questions: "Why are you visiting Israel? Where are you staying? Did anyone give you anything to carry?" Answer honestly and simply. If you're with a church group, say so — it's one of the most common reasons for visiting.
Arrive at the airport 3 hours before your departure flight. Security lines on the way out are longer than on arrival. You may be asked to turn on electronic devices. Checked bags are X-rayed, and some travelers are selected for additional screening — it's random and routine, not personal.
West Bank crossings: When visiting Bethlehem or Jericho, your bus will pass through checkpoints. Your guide handles the logistics. Keep your passport accessible. The process is usually quick for tourist groups. Photography at checkpoints is prohibited.
Overall: stay calm, be polite, answer questions directly, and you'll be fine. Security exists to keep everyone safe, and tourist groups move through efficiently.