"Let all the house of Israel know certainly, then, that God makes Him Lord as well as Christ - this Jesus Whom you crucify...Repent and be baptized each of you in the name of Jesus Christ...repent and return, so that your sins may be wiped away, in order that times of refreshing may come from the presence of the Lord; and that He may send Jesus, the Messiah appointed for you, whom heaven must receive until the period of restoration of all things about which God spoke by the mouth of His holy prophets from ancient time...It is you who are the sons of the prophets and of the covenant of God made with your fathers" (Acts 2:36-39; 3:20-25)
To this day the nation of Israel has not repented and blindness is upon it for rejecting Jesus as the Messiah. This blindness will be lifted and the nation of Israel will repent just before Jesus returns, and then "Israel shall be saved".
"For I would not, brethren, that ye should be ignorant of this mystery, that blindness in part is happened to Israel, until the fullness of the nations be come in. And so all Israel shall be saved: as it is written, there shall come out of Zion the Deliverer, and shall turn away ungodliness from Jacob." (Romans 11:25-26)
I do not find in reading the Scripture that repentance and water baptism is required for the salvation of INDIVIDUALS among Israel or any other nation. Individual salvation was secured for humanity by the grace of God in sending Jesus to die for the sins of the whole world. His shed blood on the cross cleanses and atones for all sins.
"For I would not, brethren, that ye should be ignorant of this mystery, that blindness in part is happened to Israel, until the fullness of the nations be come in. And so all Israel shall be saved: as it is written, there shall come out of Zion the Deliverer, and shall turn away ungodliness from Jacob." (Romans 11:25-26)
I do not find in reading the Scripture that repentance and water baptism is required for the salvation of INDIVIDUALS among Israel or any other nation. Individual salvation was secured for humanity by the grace of God in sending Jesus to die for the sins of the whole world. His shed blood on the cross cleanses and atones for all sins.
"...the blood of Jesus, His Son, cleanses us from all sin." (1 John 1:7)
"He Himself is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world." (1 John 2:2)
"God is commending this love of His to us, seeing that, while we are still sinners, Christ died for our sakes. Much rather, then, being now justified in His blood, we shall be saved from wrath, through Him." (Romans 5:8-9)
"For the wages of sin is death, but the free gift of God is eternal life through Christ Jesus our Lord." (Romans 6:23)
There are still some unfulfilled promises to the nation of Israel which will be fulfilled after Jesus returns. Israel will rule with Jesus its Messiah over this present earth for a thousand years during which time all that was promised Abraham, Isaac, Jacob, and David will be fulfilled.
"Then I saw thrones, and seated on them were those to whom the authority to judge was committed. Also I saw the souls of those who had been beheaded for the testimony of Jesus and for the word of God, and those who had not worshiped the beast or its image and had not received its mark on their foreheads or their hands. They came to life and reigned with Christ for a thousand years. The rest of the dead did not come to life until the thousand years were ended. This is the first resurrection." (Revelation 20:4-5)