As He returns. Acts 1:8-10
Jesus removes His without setting foot on the Earth. He draws His up to meet Him un the air and return to the Father’s House, as He Promised in John 14:1-4
When Jesus again puts His feet on the Mount of Olives it will be rescue Israel. That is not something the Ecclesia He has been building is going to endure through the Tribulation to see. And we will be coming with Him when He does set foot on Earth again. And the nations of the Earth will see that event as it happens.