Blessed assurance or trembling fear? Perhaps both

Friends,
I have heard it said that there are many paradoxes in the Christian faith, and indeed there are. The one that has been on my mind today is the apparent contradiction between the teaching that we Christians should have "blessed assurance" of our eternal salvation, and at the same time we should be people who tremble with fear at the word and power of God. Take a look:

My flesh trembles for fear of you,and I am afraid of your judgments. ~psalm 119:120

Serve the LORD with fear,and rejoice with trembling ~psalm 2:11

There are many verses like the three listed above. Now see what the Bible says about assurance

I give them eternal life, and they shall never perish; no one can snatch them out of my hand. ~John 10:28

For I am convinced that neither death nor life, neither angels nor demons,neither the present nor the future, nor any powers, neither height nor depth, nor anything else in all creation, will be able to separate us from the love of God that is in Christ Jesus our Lord. ~Rom 8:38-39

Have you ever thought about this? Is there a contradiction here? I would say that this is not a contradiction at all, but rather these are two truths that actually work together. Let me explain.
What is "blessed assurance" mean for you? is this something that gives you enormous comfort? or is this something that you may have taken for granted?
I believe that God never wants us taking our salvation for granted. I believe he wants us to cling to it, to find great comfort in it, to always be in a state of thanksgiving for it. And for this reason he desires us to fear and tremble at his word. The more we fear the wrath of God, the more our salvation becomes something we embrace. Does this make sense? Let me take it one step further.
Do you fear God. Are you at the point in your Christian life that the wrath and judgments of God no longer concern you much? If so, let me tell you that you are in a very dangerous place. The Bible tells us that some who have "tasted the heavenly gift, and have become partakers of the Holy Spirit" will fall away to eternal damnation. Does that scare you? Let me be the first to say that it scares me. But it also makes me remind myself of God's promises, and it makes me thank God that I am safe in Jesus.- And I think that is the point.
I hope and pray that this message has blessed you.
With the love that flows from Christ, through me, to you,
Charlie