What "obedient to death" is signifying?

In the words of the blessed apostle Saint Paul (cf. Philippians 2,5-9): > 5 Let this mind be in you, which was also in Christ Jesus: 6 Who, being in the form of God, thought it not robbery to be equal with God: 7 But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men: 8 And being found in fashion as a man, he humbled himself, and became **obedient unto death, even the death of the cross**. 9 Wherefore God also hath highly exalted him, and given him a name which is above every name. Is according to the obedience of Christ unto death, in contrast with the desobedience of the first Adam (which was also for death, cf. Genesis 2,17), that Christ fulfill the Law and was exalted above all creation. Medidating on what this obedience was, I encoutered this theological opinion in an [article](https://learn.ligonier.org/articles/obedient-unto-death) : > What theologians are trying to do when they distinguish between the active and passive obedience of Christ is point to a very real distinction between different aspects, or different dimensions, of the one life of Christ. Throughout His entire life, Christ fulfilled the Moral Law. But so would Adam have done if sin had not entered the world when he sinned. **It’s the entrance of sin that brings in a new, darker dimension to the obedience required of Man: he must now submit to God’s holy judgment as a result of his transgression. So when Christ comes as the Second Adam, it won’t suffice for Him simply to live the holy life that unfallen Adam ought to have lived. The Second Adam’s obedience also means submitting humbly to the awesome divine verdict on human sin.** but it goes further, saying: > He was submissive throughout His life as He underwent all the hardships and sorrows of a sinless man in a fallen world. But His submission to His Father’s judgment on our sin reached its apex on the cross. **Prior to this, Christ had only walked in the outer shadow of judgment, so to speak, still enjoying the light of His Father’s face. On Skull Hill, He entered the innermost darkness when He cried out, “My God, why have You forsaken Me?” Yet still He embraced the darkness with a submissive spirit — a Son obeying His Father’s purpose, at one with the Father in His redemptive design**. Of course, this is not a catholic opinion, and it's, indeed, catholic doctrine that Christ, in His human nature, have the beatific vision of the Father at all moments of His earthly life, including in the cross. Reading the first part that I quoted, I come to the contemplation that Christ's obedience to the Law, the Eternal Law that emanates from the Father, has really this twofold meaning: Christ fulfill the Law firstly in its virtue and holy life, out of love to the Father, but secondly, because man sinned, and the punishment of sin is the spiritual death (i.e. eternal separation of God), and because sin requires atonement according to this Law, then, in obedience to this decree of the Father and out of love for us, Christ provided in himself this atonement on our behalf, through His passion and consequently death on the cross. Now, because of the second part that I quoted (and rest), i have the impression that the article was pointing to the view of atonement by penal substition, which is contrary to the catholic theology (at least, to the consensus of the Church). **My first question is**: According to catholic theology/teaching, is my reading of the first part wrong, valid or there is no saying on this particular view. Again, my reading is not of penal substition, but on this reflection of the twofold aspect of Christ's obedience. **My second (and main) question is**: What are the main theological opinions within the (Catholic) Church about the nature of the obedience of Christ? It was obedience to the Law of the covenant of Moses? To the Eternal Law of the Father, the Divine Justice? To, specifically, the plan of human redemption of the Father? Every of these at once? I apologize if this question appears to be to simple (I did not complete my cathechesis yet, if this serves of excuse), but what I'm really searching is to run away from the simplistic view that "he was obedient fulfilling the Father's redemption", or something like that, and go deeply in this mystery. God bless.