Per Catholic understanding, this is an incorrect analogy. The Flower Bed is fertile because of the cooperation between the bed and water. The work is in the combination.
In regards the “cooperation” between man and God:
From the Council of Orange:
Canon 4. If anyone maintains that God awaits our will to be cleansed from sin, but does not confess that even our will to be cleansed comes to us through the infusion and working of the Holy Spirit, he resists the Holy Spirit himself who says through Solomon, “The will is prepared by the Lord” (Prov. 8:35, LXX), and the salutary word of the Apostle, “For God is at work in you, both to will and to work for his good pleasure” (Phil. 2:13).
Canon 5. If anyone says that not only the increase of faith but also its beginning and the very desire for faith, by which we believe in Him who justifies the ungodly and comes to the regeneration of holy baptism — if anyone says that this belongs to us by nature and not by a gift of grace, that is, by the inspiration of the Holy Spirit amending our will and turning it from unbelief to faith and from godlessness to godliness, it is proof that he is opposed to the teaching of the Apostles, for blessed Paul says, “And I am sure that he who began a good work in you will bring it to completion at the day of Jesus Christ” (Phil. 1:6). And again, “For by grace you have been saved through faith; and this is not your own doing, it is the gift of God” (Eph. 2:8). For those who state that the faith by which we believe in God is natural make all who are separated from the Church of Christ by definition in some measure believers.
Canon 6. If anyone says that God has mercy upon us when, apart from his grace, we believe, will, desire, strive, labor, pray, watch, study, seek, ask, or knock, but does not confess that it is by the infusion and inspiration of the Holy Spirit within us that we have the faith, the will, or the strength to do all these things as we ought; or if anyone makes the assistance of grace depend on the humility or obedience of man and does not agree that it is a gift of grace itself that we are obedient and humble, he contradicts the Apostle who says, “What have you that you did not receive?” (1 Cor. 4:7), and, “But by the grace of God I am what I am” (1 Cor. 15:10).
Canon 7. If anyone affirms that we can form any right opinion or make any right choice which relates to the salvation of eternal life, as is expedient for us, or that we can be saved, that is, assent to the preaching of the gospel through our natural powers without the illumination and inspiration of the Holy Spirit, who makes all men gladly assent to and believe in the truth, he is led astray by a heretical spirit, and does not understand the voice of God who says in the Gospel, “For apart from me you can do nothing” (John 15:5), and the word of the Apostle, “Not that we are competent of ourselves to claim anything as coming from us; our competence is from God” (2 Cor. 3:5).
Initial justification is that process of combining. Not instantaneous but a tilling, a work.
In regards the instantaneous nature of justification:
From ST. Thomas Aquinas:
“On the contrary, The justification of the ungodly is caused by the justifying grace of the Holy Spirit. Now the Holy Spirit comes to men’s minds suddenly, according to Acts 2:2: “And suddenly there came a sound from heaven as of a mighty wind coming,” upon which the gloss says that “the grace of the Holy Ghost knows no tardy efforts.” Hence the justification of the ungodly is not successive, but instantaneous…Therefore the justification of the ungodly by God takes place in an instant.”
There are plenty of non-believers doing wonderful good work, some come to Christ through their good work. The good work is still good despite lack of faith, many protestants would say that such work is not good.
Certainly God will at times reward the good works of a non-Christian with either actual grace to draw them to salvation or sanctifying grace to give it to them. But that is not the point of contention when it comes to the evangelical nature of the gospel. What is at contention is whether “saving faith” is sufficient. And it is.
Generally, yes, I agree. But let’s not put God into a box and make no provisions for Him to bless and reward works done before justification, and which may in fact be causative.
The story of Cornelius is a good example. Acts 10:4, “Thy prayers and alms have gone up and been remembered in the sight of God.” And as a result, God sent Peter to bring him into the faith.
The story of Rahab is another good example, off the top of my head.
See my last comments above.
I think it’s beneficial to clarify too that faith is not the equivalent of justice for man, as if that’s all God desires of us. Rather we’re saved by faith- via faith- so the Church teaches that faith is the “beginning of human salvation, the foundation, and the root of all justification”
Yes, faith is the beginning and root of all justification. That means, once you have saving faith, you thus have acquired by your saving faith the reward of INITIAL justification. when the Church talks about “the root of all justification” it has in mind a beginning point, at which justice is established, from which additional justice may be attained. But justice has already been established with the arrival of saving faith in the heart of man. Such faith is impossible to come about but by sanctifying grace, and the presence of sanctifying grace provides both the principle effect of baptism (remission of sins) and the assurance that God will begin the process of sanctification and increasing justification.