Something is required of us -- in fact, quite a bit (Mt 25). To presume we will be judged as justified before we actually are reminds us of the pharisee who made that presumption (Lk 18:10-14). This is the road to justification as outlined by St. Peter:
2 Grace to you and peace be accomplished in the knowledge of God and of Christ Jesus our Lord: 3 As all things of his divine power which appertain to life and godliness, are given us, through the knowledge of him who hath called us by his own proper glory and virtue. 4 By whom he hath given us most great and precious promises: that by these you may be made partakers of the divine nature: flying the corruption of that concupiscence which is in the world. 5 And you, employing all care, minister in your faith, virtue; and in virtue, knowledge; 6 And in knowledge, abstinence; and in abstinence, patience; and in patience, godliness; 7 And in godliness, love of brotherhood; and in love of brotherhood, charity. 8 For if these things be with you and abound, they will make you to be neither empty nor unfruitful in the knowledge of our Lord Jesus Christ. 9 For he that hath not these things with him, is blind, and groping, having forgotten that he was purged from his old sins. 10 Wherefore, brethren, labour the more, that by good works you may make sure your calling and election. For doing these things, you shall not sin at any time."Make sure your calling and election" -- that comes in the end.(2 Peter 1)
Excellent question, that cuts to the heart of the Catholic faith.
Heb. 9:12 - Christ's sacrifice secured our redemption, but redemption is not the same thing as salvation. We participate in and hope for salvation. Our hope in salvation is a guarantee if we are faithful to Christ to the end. But if we lose hope and fail to persevere, we can lose our salvation. Thus, by our own choosing (not by God's doing), salvation is not a certainty. While many Protestant churches believe in the theology of "once saved, always saved," such a novel theory is not found in Scripture and has never been taught by the Church.
And,
Rom. 5:2 - we rejoice in the "hope" (not the presumptuous certainty) of sharing the glory of God. If salvation is absolutely assured after accepting Jesus as Savior, why would Paul hope?
There are many scriptural passages that re-inforce the fact that we are not guaranteed salvation. We hope for it.
Thank you for your response. Is that the key passage for the Catholic faith regarding the need for us to do things to make our eternal life with Jesus a certainty? Are there others?