Yes, very much so. The Sacraments of the Church make us a new creation; we are no longer struggling for righteousness on our own but rather it is Christ showing us the way. Should we stumble, we can seek forgiveness of sins and we receive supernatural food in the Eucharist and the companionship of Mary and the saints on your journey. The difference is radical.
But the question was not the regenerative power of Baptism, but whether our justification is a one-time event in the life of a believer. That, the previous quotes did not show and the new ones did not even address. The distinction between justification, salvation, and sanctification, and simply growth in righteousness, is artificial. The Biblical truth is that all these words refer in the Bible to a process that culminates at the moment of individual's judgement at the time of his death, described in great detail in the second half of Matthew 25. That judgement is based on our works.
Do you see anywhere in those scriptures that the Church has made you a new creation. This is blasphamy.
But the question was not the regenerative power of Baptism, but whether our justification is a one-time event in the life of a believer. That, the previous quotes did not show and the new ones did not even address.
Well I don't see in the scripture how you can be a part time slave to sin and a part time slave to righteousness; or a part time child of wrath and a part time child of God. The scriptures are rather clear that your either one or the other. If that is the case, as it is, than justification is a one time event.
If you are believing in your works to save you, you will be very disappointed.
Christ does not show us the way. Christ is the way.
We are justified by Christ's righteousness imputed to us. To get that wrong is to just about miss the point of the Christian faith entirely.