Check out Zacharia 14. He will set his foot on the mount of olives. They (Jews) will see the scar in his side and the scars in his hands and say, "Where did you get those scars? and he will say in the house of my friends and a nation will be saved in a day.
Hmmmm? I've checked Zechariah and Zephaniah, and I cannot find your scripture.
Where ever that scripture may be .. it certainly was a prophetic word regarding the return of Jesus.
So what was your point about quoting that particular scripture ..??
Which means that when the church leaves the earth - Israel will still be here as a nation - and they will be saved as a whole nation upon Jesus' final return to set up a new Jerusalem. Wow! I love knowing that "a nation will be saved".