Mt 7:21 - not everyone saying “Lord, Lord” will inherit
Mt 24:13 - those who persevere to the end will be saved
Rom 11:22 - remain in his kindness or you will be cut off
Phil 2:12 - work out your salvation in fear and trembling
1Cor 9:27 - drive body for fear of being disqualified
1Cor 10:11-12 - those thinking they are secure may fall
Gal 5:4 - separated from Christ, you’ve fallen from grace
2Tim 2:11-13 - must hold out to the end to reign with Christ
Hb 6:4-6 - describes sharers in Holy Spirit who then fall away
Heb 10:26-27 - if sin after receiving truth, judgment remains
2Pet 2: 20-22
For if, after they have escaped the defilements of the world through the knowledge of our Lord and Savior Jesus Christ, they are again entangled in them and overpowered, the last state has become worse for them than the first. For it would have been better for them never to have known the way of righteousness than after knowing it to turn back from the holy commandment delivered to them. It has happened to them according to the true proverb, The dog turns back to his own vomit, and the sow is washed only to wallow in the mire.
and:
scripturecatholic.com/salvation.html#salvation-II
From the
Catechism:
2091 The first commandment is also concerned with sins against hope, namely, despair and presumption:
By
despair, man ceases to hope for his personal salvation from God, for help in attaining it or for the forgiveness of his sins. Despair is contrary to God’s goodness, to his justice - for the Lord is faithful to his promises - and to his mercy.
2092 There are two kinds of
presumption. Either man presumes upon his own capacities, (hoping to be able to save himself without help from on high), or he presumes upon God’s almighty power or his mercy (hoping to obtain his forgiveness without conversion and glory without merit).