1 Corinthians 10:3 And did all eat the same spiritual meat; 4 And did all drink the same spiritual drink: for they drank of that spiritual Rock that followed them: and that Rock was Christ. 5 But with many of them God was not well pleased: for they were overthrown in the wilderness.
The purpose of God was revealed in the scriptures.
Adam and Eve by disobedience brought sin and death upon themselves and all their offspring.
Everyone sins and the sentence for sin is death.
Ezekiel 18:20 The soul that sinneth, it shall die...
Romans 6:23 For the wages of sin is death...
Romans 5:12 Wherefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned:
God promised a redeemer who would provide a way of escape from death for the faithful.
God promised Abraham that the redeemer – the one in whom all nations would be blessed would be Abraham’s descendant.
Genesis 22:18 And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.
This seed was singular and referred to Jesus Christ, a descendent of Abraham.
Galatians 3:16 Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ.
Christ would provide a way of escape from death by his perfect obedience.
Romans 5:19 For as by one man’s disobedience many were made sinners, so by the obedience of one shall many be made righteous.
Moses also foretold the coming of Christ.
Deuteronomy 18:15 The LORD thy God will raise up unto thee a Prophet from the midst of thee, of thy brethren, like unto me; unto him ye shall hearken;
Deuteronomy 18:18 I will raise them up a Prophet from among their brethren, like unto thee, and will put my words in his mouth; and he shall speak unto them all that I shall command him. 19 And it shall come to pass, that whosoever will not hearken unto my words which he shall speak in my name, I will require it of him.
So we see that both Abraham and Moses were aware of the promise of a redeemer, because only the coming of the redeemer could save them from death.
This promise of a redeemer was the ‘rock’ which made obedience to God in their lives worthwhile.
It was a spiritual understanding of the promise of God.
The ‘rock’ followed them inasmuch as his advent was in the future.
It was understood that Moses spoke about the redeemer, and the sacrifices under the Law pointed forward to the one sacrifice that could take away sin.
So Philip could say:
John 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.
And Jesus could say:
John 8:56 Your father Abraham rejoiced to see my day: and he saw it, and was glad.
Luke 24:25 Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken: 27 And beginning at Moses and all the prophets, he expounded unto them in all the scriptures the things concerning himself.
Israel as they travelled through the wilderness knew the promise of God and this promise which was eventually fulfilled in Christ constituted their spiritual food.
Many of them sadly were not interested in eternal life by the promise of God. They were only interested in this life. As a consequence, they disobeyed God and refused to live by his precepts.
Abraham was promised eternal inheritance of the land of Canaan which necessitates his resurrection from the dead to eternal life upon the earth.
Genesis 13:15 For all the land which thou seest, to thee will I give it, and to thy seed for ever.
This was the promise inherited by Israel.
The same promise (resurrection to an eternal inheritance on the earth) is promised to those in Christ.
Galatians 3:27 For as many of you as have been baptized into Christ have put on Christ. 28 There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus. 29 And if ye be Christ’s, then are ye Abraham’s seed, and heirs according to the promise.
The kingdom of God will be the restored kingdom of Israel bearing rule over all the earth.
Luke 1:32 He shall be great, and shall be called the Son of the Highest: and the Lord God shall give unto him the throne of his father David: 33 And he shall reign over the house of Jacob for ever; and of his kingdom there shall be no end.
Hence the request in the ‘Lord’s Prayer’:
Matthew 6:10 Thy kingdom come. Thy will be done in earth, as it is in heaven.
The promise for the faithful in Israel and for all who obey the gospel is eternal inheritance on the earth.
Psalms 37:9 For evildoers shall be cut off: but those that wait upon the LORD, they shall inherit the earth.
Psalms 37:11 But the meek shall inherit the earth; and shall delight themselves in the abundance of peace.
Psalms 37:22 For such as be blessed of him shall inherit the earth; and they that be cursed of him shall be cut off.
Matthew 5:5 Blessed are the meek: for they shall inherit the earth
I hope you find this helpful.