Matthew 24:13 But he that shall endure unto the end, the same shall be saved.
One of the favorite Bible verse in saying salvation can be lost and other similar verses. Here is the bible passage that deals with the nation of Israel and the tribulation. This may be well said that "endurance 'till the end" refers an Israeli individual who just survive the tribulation. This "end" may further shed light of the physical survival. as in verses 3, 6 and 14 is the Gospel of the kingdom is preach not the Gospel of God's Grace and v.15 which is in reference to the Daniel's 70 weeks prophecy which concerns the Israel. Context to quote:
Matthew 24:2 And Jesus said unto them, See ye not all these things? verily I say unto you, There shall not be left here one stone upon another, that shall not be thrown down.
Mattthew 24:3 And as he sat upon the mount of Olives, the disciples came unto him privately, saying, Tell us, when shall these things be? and what
shall be the sign of thy coming, and of the end of the world?
Matthew 24:6 And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all
these things must come to pass, but the end is not yet.
Matthew 24: 14 And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come.
Matthew 24:15 When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (
whoso readeth, let him understand