In the 1e. portion of John Gill's treatment of the ways in which The Old and New Testament Covenants agree, he lists several Blessings In the blessings of it;
Salvation
Justification
Forgiveness of sins
Regeneration
Eternal Life.
The scriptures stated are an enormous blessing on the subject of this question.
"In a word, they and we eat the same spiritual meat, and drink the same spiritual drink, for they drank of that Rock that followed them, and that Rock was Christ, #1Co 10:3,4.
"they are the same under both administrations. Salvation and redemption by Christ is the great blessing held forth and enjoyed under the one as under the other, #2Sa 23:5 Heb 9:15.
"Justification by the righteousness of Christ, which the Old Testament church had knowledge of, and faith in, as well as the new, #Isa 45:24,25 Ro 3:21-23.
"Forgiveness of sin through faith in Christ, all the prophets bore witness to; and the saints of old, as now, had as comfortable an application of it, #Ps 32:1,5 Isa 43:25 Mic 7:18 Ac 10:43.
"Regeneration, spiritual circumcision, and sanctification were what men were made partakers of under the first, as under the second administration of the covenant, #De 30:6 Php 3:3.
"Eternal life was made known in the writings of the Old Testament, as well as in those of the New; and was believed, looked for, and expected by the saints of the former, as of the latter dispensation, #Joh 5:39 Heb 11:10,16 Job 19:26,27.
"In a word, they and we eat the same spiritual meat, and drink the same spiritual drink, for they drank of that Rock that followed them, and that Rock was Christ, #1Co 10:3,4."
His By Grace--"John Gill: A Body of Doctrinal & Practical Divinity"-Doctrinal Book 4, Chapter 1
"1. First, The agreement there is between them.
"1a. They agree in the efficient cause, God: the covenant of grace, in its original constitution in eternity, is of God, and therefore it is called his covenant, being made by him; "I have made a covenant--my covenant I will not break", #Ps 89:3,34 and whenever any exhibition or manifestation of this covenant was made to any of the patriarchs, as to Abraham, David, &c. it is ascribed to God, "I will make my covenant--he hath made with me an everlasting covenant", #Ge 17:2 2Sa 23:5 so the new covenant, or new administration of it, runs in this form, "I will make a new covenant", &c. #Heb 8:8.
"1b. In the moving cause, the sovereign mercy, and free grace of God, which moved God to make the covenant of grace at first, #Ps 89:2,3. And every exhibition of it under the former dispensation, is a rich display of it, and therefore it is called, the "mercy promised to the fathers" in his "holy covenant", #Lu 1:72 and which has so largely appeared in the coming of Christ, which is ascribed to "the tender mercy of our God", that "grace" and "truth", in the great abundance of them, are said to come by him; by which names the covenant of grace, under the gospel dispensation, is called, in distinction from that under the Mosaic one, #Lu 1:78 Joh 1:17.
"1c. In the Mediator, who is Christ; there is but one Mediator of the covenant of grace, let it be considered under what dispensation it will; even Christ, who under the former dispensation was revealed as the seed of the woman that should bruise the serpent's head, and make atonement by his sufferings and death, signified by the expiatory sacrifices, under the law; the Shiloh, the peaceable One, and the Peace Maker, the living Redeemer of Job, and of all believers under the Old Testament. Moses, indeed, was a Mediator, but he was only a typical one. There is but "one Mediator between God and man, the Man Christ Jesus"; there never was any other, and he is the "Mediator of the new covenant", #1Ti 2:5 Heb 12:24.
"1d. In the subjects of these covenants, or administrations of the covenants of grace, the elect of God, to whom the blessings of it are applied. It was with the chosen people of God in Christ, the covenant of grace was originally made; and according to the election of grace are the spiritual blessings of it dispensed to the children of men, #Ps 89:3 Eph 1:3,4 so they were under the former dispensation, from the beginning of the world, to the seed of the woman, in distinction from the seed of the serpent; to the remnant according to the election of grace among the Jews, the children of the promise that were counted for the seed; and election, or elect men, obtain the blessings of the covenant in all ages, and under the present dispensation, more abundantly, and in greater numbers.
"1e. In the blessings of it; they are the same under both administrations.
"Salvation and redemption by Christ is the great blessing held forth and enjoyed under the one as under the other, #2Sa 23:5 Heb 9:15.
"Justification by the righteousness of Christ, which the Old Testament church had knowledge of, and faith in, as well as the new, #Isa 45:24,25 Ro 3:21-23.
"Forgiveness of sin through faith in Christ, all the prophets bore witness to; and the saints of old, as now, had as comfortable an application of it, #Ps 32:1,5 Isa 43:25 Mic 7:18 Ac 10:43.
"Regeneration, spiritual circumcision, and sanctification, were what men were made partakers of under the first, as under the second administration of the covenant, #De 30:6 Php 3:3.
"Eternal life was made known in the writings of the Old Testament, as well as in those of the New; and was believed, looked for, and expected by the saints of the former, as of the latter dispensation, #Joh 5:39 Heb 11:10,16 Job 19:26,27.
"In a word, they and we eat the same spiritual meat, and drink the same spiritual drink, for they drank of that Rock that followed them, and that Rock was Christ, #1Co 10:3,4."
