Philippians 3:9

And be found in him
This is another end the apostle had in view, in counting all things loss and dung, and suffering the loss of all for Christ. Calvin, different from other interpreters, reads the words actively, "and may find in him"; and thinks the sense is, that the apostle renounced all things for Christ, that he might recover all in him: and true it is, that for the loss of carnal privileges, he found in Christ spiritual blessings; and for the loss of his own righteousness, another, and a better, even the righteousness of God; and in lieu of external goods, or worldly substance he was stripped of, true and lasting riches; and in the room of outward credit, peace and plenty, true honour, real peace, and spiritual pasture; and instead of the comforts of life, and life itself, spiritual and eternal life; though it is best to read the words passively, "and be found in him"; that is, "be in him", as the Ethiopic version renders it; so the word found is used in ( Galatians 2:17 ) ( Philippians 2:8 ) ; and he means not a nominal being in Christ, or a being in him by profession, but a real one; and watch is either secret or open: a secret being in Christ he had from everlasting, being chosen in him, given to him, loved by him, betrothed unto him, preserved in him, and represented by him; and an open one he had at conversion, when he became a new creature, and was created in Christ Jesus unto good works: and here he intends a more clear and evident manifestation of his being in Christ; and his desire is, that he might appear to be in him, in life and at death, and at the day of judgment, and in the following manner:

not having mine own righteousness, which is of the law;
by which he means his obedience to the moral, as well as the ceremonial law; for the one was as much his own as the other, and more properly his righteousness: this he calls his "own", because performed by him, and wrought out in his own strength; and which he had an high opinion of, as if it was perfect and blameless; and which he had before put his trust and confidence in; as also to distinguish it from another's righteousness, even that which he had in Christ: he moreover calls it, "the righteousness which is of the law"; which the law required, and he performed in obedience to it, seeking for justification by it; this character distinguishes it from the righteousness of God, which is revealed in the Gospel, and is manifested without the law: and this his own legal righteousness he did not desire to "have", and to be found in; not but that he desired to live soberly and righteously, to have, and do works of righteousness, but not depend on them; he would not have, and account this his moral righteousness, as a justifying one; he knew it was imperfect, filthy, and unprofitable, and that by it he could not be justified and saved, therefore he desired to have another.

But that which is through the faith of Christ;
not through that faith which Christ himself, as man, had and exercised on God, as his God; but that which he is the author and finisher of, and which has him and his righteousness for its object; not through faith, as the cause of it; for the moving cause of justification is the free grace of God, and the efficient cause is God himself: and it appears from hence, that faith is not the matter of our justification, or is not our righteousness; for faith and righteousness are two distinct things, otherwise righteousness could not be said to be "through" faith. The righteousness of Christ is here meant, and which is the sole matter of justification, and comes to us through faith apprehending, receiving, and embracing it; and which shows, that it must be before faith, or it could not be through it; as water that runs through a bridge must be before and after that bridge through which it runs. This righteousness is further described, as

the righteousness which is of God by faith;
that righteousness which Christ, who is the true God, is the author of, hence it is a pure and perfect one, infinite, and serves for many; which God the Father approves of, and is well pleased with, because his law is magnified, and made honourable by it; and what he graciously gives, and freely imputes without works, to his people: and this is "by faith", which beholds the excellency of it, acknowledges its sufficiency, renounces its own righteousness, and submits to, and lays hold on this, and rejoices in it; and thus men are justified openly and manifestly by faith, receiving the justifying righteousness of Christ: or the words may be rendered "upon faith". This righteousness is as a garment put upon faith, or put upon him by God, who has true faith in Christ; see ( Romans 3:22 ) . This last clause, "by faith", is omitted in the Syriac and Ethiopic versions, and seems to be read by them as belonging to the beginning of ( Philippians 3:10 ) . Now this righteousness the apostle desired to have, and be found in; and this he says not, as supposing that a person may be found in Christ, and yet not have his righteousness; nor as if he himself had not this righteousness, and an interest in it; but to show his value for it, and his desire to be continually exercising faith on it, and the trust and confidence he placed in it; well knowing that in this he was safe and secure from all condemnation; this would answer for him in a time to come; being found in this he should not be naked nor speechless, and should have a right and an admission into the kingdom and glory of Christ Jesus.