A couple I know returned form Israel on Wed after spending about a month there. They moved about and were in several different locations and were in Jerusalem on the day the Jewish synagogue was attacked thete not long ago. They said they were able to witness as never before and young and old Jewish people in more than one place gave a listening ear to their sharing. They said it wasn't sharinmg deep theology or high and lofty spiritual concepts that got people's attention but the simple giving of their testimony of how God saved them. When they shared what God had done for them and how God saved them that is where the anointing and the power broke through. They tried to be sevrants while there want to go back. They sensed and discerned the body of Christ in Israel is depressed and oppressed to a large degree and needs our prayers more than ever before. The wife even witnessed to a disillusioned Muslim on the plane ride back.
Not deep theology but the word of their testimony turned out to be the most used by God on their trip.