Man is justified by the righteousness of God which is the faith of Christ

It was once the law; now it is “the righteousness of God which is by the faith of (Jesus) Christ.” What means this distinction? Has your god been subserving the interests of the Creator’s dispensation, by affording time to Him and to His law? Is the “Now” in the hands of Him to whom belonged the “Then”? Surely, then, the law was His, whose is now the righteousness of God. It is a distinction of dispensations, not of gods.  He enjoins those who are justified by faith in Christ and not by the law to have peace with God.

…Now, as peace is only possible towards Him with whom there once was war, we shall be both justified by Him, and to Him also will belong the Christ, in whom we are justified by faith, and through whom alone God’s enemies can ever be reduced to peace.

Tertullian
The Five Books Against Marcion, Book V
Chapter XIV

Man appears before the judgment seat of Christ in the body

In this view it is that he informs us how “we must all appear before the judgement-seat of Christ, that every one may receive the things done in his body, according as he hath done either good or bad.” Since, however, there is then to be a retribution according to men’s merits, how will any be able to reckon with God? But by mentioning both the judgment-seat and the distinction between works good and bad, he sets before us a Judge who is to award both sentences, and has thereby affirmed that all will have to be present at the tribunal in their bodies. For it will be impossible to pass sentence except on the body, for what has been done in the body. God would be unjust, if any one were not punished or else rewarded in that very condition, wherein the merit was itself achieved.

Tertullian
The Five Books Against Marcion, Book V
Chapter XII

At the resurrection the dead receive their bodies back and the living have their bodies transformed

Both those shall be raised incorruptible, because they shall regain their body—and that a renewed one, from which shall come their incorruptibility; and these also shall, in the crisis of the last moment, and from their instantaneous death, whilst encountering the oppressions of anti-christ, undergo a change, obtaining therein not so much a divestiture of body as “a clothing upon” with the vesture which is from heaven. So that whilst these shall put on over their (changed) body this, heavenly raiment, the dead also shall for their part recover their body, over which they too have a supervesture to put on, even the incorruption of heaven; because of these it was that he said:  “This corruptible must put on incorruption, and this mortal must put on immortality.” The one put on this (heavenly) apparel, when they recover their bodies; the others put it on as a supervesture, when they indeed hardly lose them (in the suddenness of their change).

Tertullian
The Five Books Against Marcion, Book V
Chapter XII

Christ is the one who said “Let there be light”

Now who was it that said; “Let there be light?” And who was it that said to Christ concerning giving light to the world: “I have set Thee as a light to the Gentiles”—to them, that is, “who sit in darkness and in the shadow of death?” (None else, surely, than He), to whom the Spirit in the Psalm answers, in His foresight of the future, saying, “The light of Thy countenance, O Lord, hath been displayed upon us.” Now the countenance (or person) of the Lord here is Christ. Wherefore the apostle said above: “Christ, who is the image of God.” Since Christ, then, is the person of the Creator, who said, “Let there be light,” it follows that Christ and the apostles, and the gospel, and the veil, and Moses—nay, the whole of the dispensations—belong to the God who is the Creator of this world, according to the testimony of the clause (above adverted to), and certainly not to him who never said, “Let there be light.”

Tertullian
The Five Books Against Marcion, Book V
Chapter XI

Marcion preached only a resurrection of the soul

For Marcion does not in any wise admit the resurrection of the flesh, and it is only the salvation of the soul which he promises; consequently the question which he raises is not concerning the sort of body, but the very substance thereof. Notwithstanding, he is most plainly refuted even from what the apostle advances respecting the quality of the body, in answer to those who ask, “How are the dead raised up? with what body do they come?” For as he treated of the sort of body, he of course ipso facto proclaimed in the argument that it was a body which would rise again.

Tertullian
The Five Books Against Marcion, Book V
Chapter X

Christ is the High Priest of both the circumcision and the uncircumcision

Christ is the proper and legitimate High Priest of God. He is the Pontiff of the priesthood of the uncircumcision, constituted such, even then, for the Gentiles, by whom He was to be more fully received, although at His last coming He will favour with His acceptance and blessing the circumcision also, even the race of Abraham, which by and by is to acknowledge Him.

Tertullian
The Five Books Against Marcion, Book V
Chapter IX

We are made alive in Christ in the body

Here in the word man, who consists of bodily substance, as we have often shown already, is presented to me the body of Christ.  But if we are all so made alive in Christ, as we die in Adam, it follows of necessity that we are made alive in Christ as a bodily substance, since we died in Adam as a bodily substance. The similarity, indeed, is not complete, unless our revival in Christ concur in identity of substance with our mortality in Adam.

Tertullian
The Five Books Against Marcion, Book V
Chapter IX

Only a body dies so therefore resurrection is of the body, not the soul

Now the body is that which loses life, and as the result of losing it becomes dead. To the body, therefore, the term dead is only suitable. Moreover, as resurrection accrues to what is dead, and dead is a term applicable only to a body, therefore the body alone has a resurrection incidental to it. So again the word Resurrection, or (rising again), embraces only that which has fallen down. “To rise,” indeed, can be predicated of that which has never fallen down, but had already been always lying down. But “to rise again” is predicable only of that which has fallen down; because it is by rising again, in consequence of its having fallen down, that it is said to have re-risen.

Tertullian
The Five Books Against Marcion, Book V
Chapter IX

The sacrament as Christ’s body and blood is denied by the heretics

In like manner, when treating of the gospel, we have proved from the sacrament of the bread and the cup the verity of the Lord’s body and blood in opposition to Marcion’s phantom;

Tertullian
The Five Books Against Marcion, Book V
Chapter VIII

The incarnation of God is the weakness of God though stronger than men

Now, what is that “foolishness of God which is wiser than men,” but the cross and death of Christ? What is that “weakness of God which is stronger than men,” but the nativity and incarnation of God?

Tertullian
The Five Books Against Marcion, Book V
Chapter V