So salvation is guaranteed then?
Perhaps this well known passage will illustrate the points in the discussion well...
1 Corinthians 15
1Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand;
2By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.
3For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;
4And that he was buried, and that he rose again the third day according to the scriptures:
5And that he was seen of Cephas, then of the twelve:
6After that, he was seen of above five hundred brethren at once; of whom the greater part remain unto this present, but some are fallen asleep.
7After that, he was seen of James; then of all the apostles.
8And last of all he was seen of me also, as of one born out of due time.
9For I am the least of the apostles, that am not meet to be called an apostle, because I persecuted the church of God.
10But
by the grace of God I am what I am: and his grace which
was bestowedupon me was not in vain; but
I laboured more abundantly than they all: yet not I, but the grace of God which was with me.
11Therefore whether
it were I or they, so we preach, and so ye believed.
Grace means you don't deserve it!!!
Love and gratitude means that when you understand the implications of that grace, it becomes sheer joy to follow God's requirements as you know it brings him happiness for you to do so.