As with a position one is hired for.
One is not simply hired (saved) rather, one is hired (saved) unto, for, or towards, a specific purpose, or function, in this case, as to or within, God's Overall Purpose; be it within the Prophetic, or within His Mystery aspect of His Purpose.
(Now watch some works based fool come out of the woodwork to respond to that analogy, from a views as wooden in its' literalism as the back woods they have crawled out of, lol)
Anyway, within His Prophetic Aspect of His Two-Fold Purpose: Prophecy and Mystery, a passage like Matthew 19:28, would be the issue of the reward of their internal inheritance.
Not of their inheritance, but of its' reward, or intended privilege.
Their Election of Grace: which is the issue of Service; the issue of His Purpose in calling and saving them, as Israelites, to begin with.
Which is what this passage that follows, is about...
Malachi 3:6 For I am the LORD, I change not; therefore ye sons of Jacob are not consumed.
Because God has a purpose in His Son in an agency comprised of a race of people known as Israelites (meaning sons of Jacob), He will never completely destroy that nation.
What is this purpose, reward that is tied to their eternal life, in those of them who believe on Him?
The privilege of serving Him in HIS purpose.
Malachi 3:3 And he shall sit as a refiner and purifier of silver: and he shall purify the sons of Levi, and purge them as gold and silver, that they may offer unto the LORD an offering in righteousness. 3:4 Then shall the offering of Judah and Jerusalem be pleasant unto the LORD, as in the days of old, and as in former years.
Isaiah 42:1 Behold my servant, whom I uphold; mine elect, in whom my soul delighteth; I have put my spirit upon him: he shall bring forth judgment to the Gentiles.
Which speaks of the Son one day working in the believing sons of Jacob.
Isaiah 45:4 For Jacob my servant's sake, and Israel mine elect, I have even called thee by thy name: I have surnamed thee, though thou hast not known me.
Again, both the Son, and ye sons of Jacob, are in view.
Isaiah 65:9 And I will bring forth a seed out of Jacob, and out of Judah an inheritor of my mountains: and mine elect shall inherit it, and my servants shall dwell there.
The Seed one day making possible God's purpose in those of Jacob's mulitplied seed, who believe.
Acts 3:25 Ye are the children of the prophets, and of the covenant which God made with our fathers, saying unto Abraham, And in thy seed shall all the kindreds of the earth be blessed. 3:26 Unto you first God, having raised up his Son Jesus, sent him to bless you, in turning away every one of you from his iniquities.
The reward of said inheritance? Of their eternal life?
Its' privilege?
Their Priesthood as their Privilege - in - the - land Promised, Abraham, Isaac, and Jacob.
Isaiah 65:22 They shall not build, and another inhabit; they shall not plant, and another eat: for as the days of a tree are the days of my people, and mine elect shall long enjoy the work of their hands.
As for that inheritance being referred to in 1 Peter?
1 Peter 1:3 Blessed be the God and Father of our Lord Jesus Christ, which according to his abundant mercy hath begotten us again unto a lively hope by the resurrection of Jesus Christ from the dead, 1:4 To an inheritance incorruptible, and undefiled, and that fadeth not away, reserved in heaven for you, 1:5 Who are kept by the power of God through faith unto salvation ready to be revealed in the last time.
Matthew 6:19 Lay not up for yourselves treasures upon earth, where moth and rust doth corrupt, and where thieves break through and steal: 6:20 But lay up for yourselves treasures in heaven, where neither moth nor rust doth corrupt, and where thieves do not break through nor steal: 6:21 For where your treasure is, there will your heart be also. 6:22 The light of the body is the eye: if therefore thine eye be single, thy whole body shall be full of light. 6:23 But if thine eye be evil, thy whole body shall be full of darkness. If therefore the light that is in thee be darkness, how great is that darkness! 6:24 No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon. 6:25 Therefore I say unto you, Take no thought for your life, what ye shall eat, or what ye shall drink; nor yet for your body, what ye shall put on. Is not the life more than meat, and the body than raiment? 6:26 Behold the fowls of the air: for they sow not, neither do they reap, nor gather into barns; yet your heavenly Father feedeth them. Are ye not much better than they? 6:27 Which of you by taking thought can add one cubit unto his stature? 6:28 And why take ye thought for raiment? Consider the lilies of the field, how they grow; they toil not, neither do they spin: 6:29 And yet I say unto you, That even Solomon in all his glory was not arrayed like one of these. 6:30 Wherefore, if God so clothe the grass of the field, which to day is, and to morrow is cast into the oven, shall he not much more clothe you, O ye of little faith? 6:31 Therefore take no thought, saying, What shall we eat? or, What shall we drink? or, Wherewithal shall we be clothed? 6:32 (For after all these things do the Gentiles seek
for your heavenly Father knoweth that ye have need of all these things. 6:33 But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you. 6:34 Take therefore no thought for the morrow: for the morrow shall take thought for the things of itself. Sufficient unto the day is the evil thereof.
What righteousness is that?
That righteousness that Nicodemas had failed in.
John 3:10 Jesus answered and said unto him, Art thou a master of Israel, and knowest not these things? 3:11 Verily, verily, I say unto thee, We speak that we do know, and testify that we have seen; and ye receive not our witness. 3:12 If I have told you earthly things, and ye believe not, how shall ye believe, if I tell you of heavenly things? 3:13 And no man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven.
Romans 10:5 For Moses describeth the righteousness which is of the law, That the man which doeth those things shall live by them. 10:6 But the righteousness which is of faith speaketh on this wise, Say not in thine heart, Who shall ascend into heaven? (that is, to bring Christ down from above: ) 10:7 Or, Who shall descend into the deep? (that is, to bring up Christ again from the dead.) 10:8 But what saith it? The word is nigh thee, even in thy mouth, and in thy heart: that is, the word of faith, which we preach;
What righteousness was it that was theirs? How was it accessed, or made theirs.
By believing the Law and the Prophets by taking the Lord at His Word...
John is actually a sequal to and commentary on, the Law and the Prophets...
John 1:10 He was in the world, and the world was made by him, and the world knew him not. 1:11 He came unto his own, and his own received him not. 1:12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name: 1:13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God. 1:14 And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth. 1:15 John bare witness of him, and cried, saying, This was he of whom I spake, He that cometh after me is preferred before me: for he was before me. 1:16 And of his fulness have all we received, and grace for grace.
John 1:17 For the law was given by Moses, but grace and truth came by Jesus Christ.
John 1:40 One of the two which heard John speak, and followed him, was Andrew, Simon Peter's brother. 1:41 He first findeth his own brother Simon, and saith unto him, We have found the Messias, which is, being interpreted, the Christ. 1:44 Now Philip was of Bethsaida, the city of Andrew and Peter. 1:45 Philip findeth Nathanael, and saith unto him, We have found him, of whom Moses in the law, and the prophets, did write, Jesus of Nazareth, the son of Joseph. 1:46 And Nathanael said unto him, Can there any good thing come out of Nazareth? Philip saith unto him, Come and see. 1:47 Jesus saw Nathanael coming to him, and saith of him, Behold an Israelite indeed, in whom is no guile! 1:48 Nathanael saith unto him, Whence knowest thou me? Jesus answered and said unto him, Before that Philip called thee, when thou wast under the fig tree, I saw thee. 1:49 Nathanael answered and saith unto him, Rabbi, thou art the Son of God; thou art the King of Israel. 1:50 Jesus answered and said unto him, Because I said unto thee, I saw thee under the fig tree, believest thou? thou shalt see greater things than these. 1:51 And he saith unto him, Verily, verily, I say unto you, Hereafter ye shall see heaven open, and the angels of God ascending and descending upon the Son of man.
John 5:43 I am come in my Father's name, and ye receive me not: if another shall come in his own name, him ye will receive. 5:44 How can ye believe, which receive honour one of another, and seek not the honour that cometh from God only? 5:45 Do not think that I will accuse you to the Father: there is one that accuseth you, even Moses, in whom ye trust. 5:46 For had ye believed Moses, ye would have believed me: for he wrote of me. 5:47 But if ye believe not his writings, how shall ye believe my words?
John 20:27 Then saith he to Thomas, Reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing. 20:28 And Thomas answered and said unto him, My LORD and my God. 20:29 Jesus saith unto him, Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed. 20:30 And many other signs truly did Jesus in the presence of his disciples, which are not written in this book: 20:31 But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.
Believing He was the Christ, gave them eternal life.
And said eternal life has a reward or privilege: each their place within His coming kingdom. Amen for them!
Amen concerning...the Israel OF GOD!
Much can be learned from their aspect of things, about ours.
Same principle, different application.
An inheritance.
And also, its' reward, or privilege.