Question: Do the verses in Romans 11:20,21 mean you can lose your salvation?
"Well; because of unbelief they (Israel) were broken off, and thou (Gentiles) standest by faith. Be not highminded but fear. For if God spared not the natural branches (Israel), take heed lest he also spare not thee (Gentiles)."
Answer: Romans, Chapters 9 to 11, are speaking about Israel as a nation. Chapter 9: Israel in the Past. Chapter 10: Israel in the Present. Chapter 11: Israel in the Future. Christ, the Messiah was promised to Israel as their king. Isaiah 9:6 told Israel,
"For unto us a child (Jesus) is born (His humanity), unto us a son (Christ, His deity) is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counselor, The mighty God, The everlasting Father, The Prince of Peace."
Isaiah, in 7:14, said to Israel,
"Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive and bear a son, and shall call his name Immanuel (God with us)."
All the Gospels record Jesus Christ offering Himself to Israel as their long-awaited Messiah, King and Savior; but, as a nation, they rejected Him. In John 1:11 we have the record,
"He (Christ) came unto his own (Israel) and his own (Israel) received him not."
In Matthew 27:22,
"...They all say unto him (Pilate), let him (Christ) be crucified."
Because of their unbelief, they were dispersed throughout the world in 70 A.D.
In the meantime, the saved Gentiles, who are the "wild olive tree" of Romans 11:24, have the religious privileges of taking the Gospel to the Jews and the rest of the world. During this Church Age, from Pentecost to the Rapture, God is not dealing with any one nation in particular; but, is calling out a people for His name, regardless of nationality. (Galatians 3:28).
After the Rapture, Israel will face horrible persecutions at the hands of the Antichrist. Then, the Lord returns to establish His Kingdom; thus fulfilling His promises of blessing and preservation to His chosen people, the nation of Israel. This is what Romans 11:23,24 is saying,
"...for God is able to graff them (Israel) in again (i.e. as a nation). (23 ...the natural branches, be graffed into their own olive tree (24)."
The olive tree represents Israel’s religious privileges; therefore, representing Israel as a restored nation. (Ezekiel 37:21,22). Israel will worship the Lord Jesus Christ as their Messiah, King, and Savior; thus, fulfilling Romans 11:26,
"And so all Israel shall be saved: as it is written, There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob (Israel)."
Romans 11 proves that God is faithful to His Word. As the nation of Israel is made up of individuals, the majority never believed and are in Hell today; as they never were saved. Those 3,000 that did believe on Pentecost (Acts 2:41) are in Heaven today.
As a nation, Israel has been, and will be, chastened at the hand of God; but, in the end, it is still a nation. When a person accepts Jesus Christ as their Savior they become a child of God. (John 1:12). When they sin, God can chasten; but, they are still a Christian, still a son of God. (Hebrews 12:5-7).
No, you can never lose your salvation!