THERE IS NO PROMISE OF SALVATION  FOR THE GENTILES IN MATTHEW, MARK, LUKE, OR JOHN.........

In the pre-crucifixion ministry of Jesus Christ there was  NO PLAN INCLUDED for the promise of salvation  for Gentiles.

The promise of salvation for Gentiles BEGAN  AFTER Jesus was crucified, shed His blood on the cross, was resurrected from the dead, and ascended to heaven.   BEFORE that event there was NO PROMISE of salvation for Gentiles.  Salvation WAS ONLY for the Hebrew people. It was not until AFTER Jesus appointed Paul to be the 'Apostle to the Gentiles' that the promise of salvation for the Gentiles then BEGAN according to :

Romans 1:16 ( Paul speaking )

"For I am not ashamed of the Gospel of Christ for it is the power of God UNTO SALVATION  to everyone that believes : TO THE JEW FIRST ( before the cross ), and THEN ALSO TO THE GENTILE ( after the cross )." 

Romans 11:13 ( Paul speaking )

"For I speak to you GENTILES inasmuch as I am the “Apostle of the GENTILES' , I magnify my office." ( Paul's Office is the only post crucifixion Apostle office).

Even though there IS NO PROMISE of salvation for THE GENTILES in the Books of Matthew, Mark, Luke, or John the following Scripture still holds true :

2 Timothy 3:16 ( Paul speaking )

"ALL SCRIPTURE is given by inspiration of God, and is profitable for doctrine, for reproof , for correction, and for instruction  in righteousness." 

THE 'WAY OF SALVATION'  CHANGED AT THE CRUCIFIXION OF JESUS CHRIST FOR BOTH JEWS AND GENTILES:

BEFORE the crucifixion, to obtain Salvation, the Jews had to believe WHO JESUS IS , that He is THE SON  OF GOD, and there was  NO PROMISE of salvation for the Gentiles. But  AFTER the crucifixion, to obtain salvation, BOTH the Jews and the Gentiles, alike, now must believe  WHAT JESUS DID ON THE CROSS , that He SHED HIS BLOOD  for the atonement for the sins of all mankind who believes it according to :

Romans 3:24-25 ( Paul speaking )

"Being justified freely by His grace through the ( promise of ) redemption  that is in Christ Jesus , Whom God has set forth to be a propitiation  ( appeasement ) through FAITH IN HIS BLOOD to declare His righteousness for the remission of sins that are past."

  Romans 5:9 ( Paul speaking )

"...being now justified BY HIS BLOOD , we shall be saved ( the promise of salvation ) from wrath through Him."  ( "shall be" is future tense as opposed to 'are saved' )

Ephesians 1:7 ( Paul speaking )

"In whom we now have ( the promise of  ) redemption THROUGH HIS  BLOOD , and the forgiveness of sins  according to the riches of His grace." 

Colossians 1:14 ( Paul speaking )

"In whom we have ( the promise of ) redemption  THROUGH HIS BLOOD , even the forgiveness of sin ."

Colossians 1:20 ( Paul speaking )

" And having made peace ( between man and God ) through THE BLOOD OF HIS CROSS by Him,  to reconcile all things unto Himself."

SO, THERE YOU HAVE IT :

If you are A GENTILE, looking for the promise of salvation, YOU WILL NOT FIND IT in the Books of Matthew,  Mark, Luke, or John. But YOU WILL FIND IT ONLY in the 'Gospel of Jesus Christ' given to the Apostle Paul , POST-CRUCIFIXION , and in the Book of Revelation which was also given  POST-CRUCIFIXION . 

If you want TO BE ASSURED of your personal 'promise of salvation' you must fulfill the TWO requirements given in the following Scripture :

Romans 10:9

"If you shall confess ( speak ) with your mouth the Lord Jesus, and shall believe in your heart that God has raised Him  from the dead,  YOU SHALL BE SAVED."

This means that YOU HAVE THE PROMISE OF SALVATION, IF you accept and verbally say that Jesus shed His blood on the cross as THE ATONEMENT FOR YOUR SINS and believe in your heart that God has resurrected Jesus from the dead. That is ALL it takes, AND NOTHING MORE ON YOUR PART .  

According to Your Holy Word, come Lord Jesus !