One of the greatest occasions of grief in the history of mankind will be when the regathered, unbelieving national Israel will be surrounded by Anti Christ and all the non-Israeli armies of the earth. This will be at the end of the second half of the tribulation period known as "the time of Jacob's (distress) trouble" Jeremiah 30:7 ). Two thirds of Israel will have been destroyed by God's judgment (See Zechariah 13:8, 9). When the anti-Israeli confederation plunders Jerusalem, raping women and killing innocent children, Israel will be in unbearable distress.
The Spirit of God called the Spirit of Grace in Zechariah 12:10 causes Israel to have conviction of sin over their rejection and killing the Prince of Life as they view His pierced hands and feet. Their repentance for sin will be accompanied by deep sorrow, which includes weeping and wailing. Some of the strongest words in the Hebrew language are used in describing this mourning. The Spirit of grace also shows them that their unbelief can be forgiven as they accept God's gracious provision of redemption. As a result they call on the name of the LORD (Spirit of supplication). Romans 10:13 says, "And whoever will call upon the name of the Lord will be saved." One third of the nation the remnant of Israel, will be saved both physically and spiritually. Now see Romans 11:25,26 A person cannot be saved unless they believe that they are lost in sin and darkness. Christ died for sinners. Christ died for Israel.
Oh, I was just kidding about under thirty, sb