Gen Gen. 12:3 Blessings come from the heart, and love of God in us that we love what He loves, We become one with Christ. It is not a question we ask (should we bless Israel) It is what we do. Read 1 Cor. 13:1-13) That is your answer, for Salvation comes from the Jew, The son of David the son of God. Rom.1:1-6
The salvation of God was taken from Israel and sent to the Gentiles in Ac 28:28, right after Paul pronounced spiritual blindness on Israel, in Ac 28:25-27, through the curse of Isa 6:8-10, and Israel was then set aside. Israel, as a nation, has not existed, in God's eyes, in about 1950 years. They are Lo-ammi, Not My People, as in Hosea 1:9.
Israel will always have to keep the Law. IF they don't keep the Law, it's impossible they can be God's people.At the present, they can't keep the Law without a temple. For one thing, they can't sacrifice. The Talmudic Jews are totally lost, since they certainly make God's Word of none effect through their Satanic oral traditions, as Christ condemned..
Salvation today is on an individual basis and is all based on Paul's Gospel of 1Cor 15:1-4. The Jews are the same as Gentiles, as far as salvation is concerned. They can only be saved by believing that Christ died for their sins, was buried, and was raised up after 3 days.
Since all prophecy written by the OT prophets involved Israel, and since there is no Israel today, it's impossible that any fulfillment of OT prophecy has taken place since 70AD. The idea that Israel becoming a nation in 1948 is a fulfillment of prophecy, is one of Satan's Grand Hoaxes.