What do you mean by "immediate salvation"?
As is the case regarding the typical opinion for BOD, immediate salvation = when in imminent danger of death.
What do you mean he will "provide it"?
Divine = God
Providence = Provides
God will not deny any necessity for salvation to anyone who is sincere, He absolutely will provide what the person desires.
If you then being evil, know how to give good gifts to your children: how much more will your Father, who is in heaven, give good things to them that ask him?
Does it not pertain to the 1st Commandment to worship God? Is not missing Mass a mortal sin that will damn you to hell for all eternity? Why would God allow a man to miss Mass, nay even positively will it for physical evil is willed by God, if his salvation depended upon it?
FWIW, your particular quote above is no argument to me. The reason is very simple. I have had the Holy Sacrifice of the Mass handed to me on a silver platter nearly my whole life through no merit of my own. Without fail, God Provides what we need as long as we seek it sincerely.
On top of that, have you ever made a Spiritual Communion? How can you explain the fact that one can receive the effects of Holy Communion without physically receiving the Sacrament?
Yes, I've made Spiritual Communions whenever I couldn't make it to Mass - but making a Spiritual Communion before death would not save my soul if I died and had mortal sin on my soul.
Have you any notion of perfect contrition coupled with at least an implicit desire for the Sacrament of Penance which forgives sin as if one had received the Sacrament itself?
Don't forget that I am a Catholic, I have been to confession many, many times, I've received the Sacrament of Confirmation, I have the Church, Our Blessed Mother, the saints, Sacramentals and I've assisted at the Holy Sacrifice for 45 years - for many of those years I attended and/or served every day of the week and on and on - - - - I do not know if I can even make a perfect act of Contrition - only God would know - so I will not reward heaven to anyone - especially not to one who has not had the benefits of God's sanctifying sacraments.
The very fact that the Church requires every mortal sin committed to be confessed, whether one is perfectly sorry for it or not, shows the Church has a maternal suspicion of this perfect act of love of God obtaining forgiveness apart from the Sacrament of forgiveness instituted by Christ.
How do you explain these things in light of your "doctrine of Providence"? How do you explain the fact that these doctrines have been taught by all theologians for over 1,000 years without ever being censured by the Church?
First off, it is the Church's Doctrine - not mine.
The Doctrine of Divine Providence teaches us that it (Divine Providence) leaves no room for chance or for fate.
That nothing happens in the universe without God willing and allowing it. This statement must he taken absolutely of everything with the exception of sin. 'Nothing occurs by chance in the whole course of our lives' is the unanimous teaching of the Fathers and Doctors of the Church, "and God intervenes everywhere." Pay special notice to those last three words........"God intervenes everywhere". One could meditate for 1000 years on those last three words alone and never fully comprehend it.
Now, one may perversely believe that God, in His Divine Providence, would ignore one who is sincere and about to die unbaptized, yet grant that person salvation in spite of His law. Seems many saints at one time or another believed that, but what earthly father would leave their child wanting something that was an absolute necessity when the father could effortlessly provide it?
Mat. 7:7 Ask, and it shall be given you: seek, and you shall find: knock, and it shall be opened to you.
8 For every one that asketh, receiveth: and he that seeketh, findeth: and to him that knocketh, it shall be opened.
9 Or what man is there among you, of whom if his son shall ask bread, will he reach him a stone?
10 Or if he shall ask a fish, will he reach him a serpent?
11 If you then being evil, know how to give good gifts to your children: how much more will your Father, who is in heaven, give good things to them that ask him?Our Lord will NEVER deny baptism to one who sincerely desires it. *THAT* is how God provides, *THAT* is how God, like the loving Heavenly Father that He is, proves His infinite love, mercy and justice for us - by providing to us what we need.