Well I instantly had assurance the moment I was saved. I knew I had eternal life, that all my sins had been forgiven. This was before I even opened up a bible for the first time. When you're born of the Spirit, you know.
So when I hear someone state that they have no assurance *I conclude* that either (a) they don't actually have the Holy Spirit (because they would know) or (b) they once had this assurance, but in the years since they've been listening too much to teachers and as a result they now have doubts.
But God knew that some would have doubts, which is why the bible is full of scriptures to reassure us...
1 John 5:11-15: And this is the testimony: that God has given us eternal life, and this life is in His Son. He who has the Son has life; he who does not have the Son of God does not have life. These things I have written to you who believe in the name of the Son of God, that you may know that you have eternal life, and that you may continue to believe in the name of the Son of God.
Now this is the confidence that we have in Him, that if we ask anything according to His will, He hears us. And if we know that He hears us, whatever we ask, we know that we have the petitions that we have asked of Him.
Yes and Amen, The Holy Spirit is the first to testify to this truth.
Imagine if when you got saved the Holy Spirit said "YES you're MINE, you now belong to me, Satan has lost, your victory is in me, I will never leave you, I will complete the work I am starting...........but there are some things............ and if you can't pull em off....well....never mind off to hell you go, syonara!!".
That would be like every false promise the world offers us.
Every contract that can and is broken, every word spoken that once believed and found to be lie.
To me these folks are ascribing worldly attributes to the Creator of the Universe, minimizing what He has done for us. Trivializing the magnitude of our sin, which illuminates the magnificence of His sacrifice.
Once the Holy Spirit has testified the truth, the word of God takes on new meaning.
I was saved for 12 years and stuck in religious mode until 7 months ago when the truth was finally revealed.
When I started to ask questions about the lies I was being taught, by folks that want to Covenant mash, and hold on to the Law as their way of life. Questions that were nagging in my Spirit for years.
Someone came along and answered those questions, and when they made sense, I sat down and read the word more, studied the word more,
enjoyed the word and understood much more of the word, I understood finally what it meant when people would tell me the His word brings life.
What I am trying to say is when we first get saved, we are excited, joyful and happy, and then over time we are dragged down by lies and dogma.
If we only listened to God and kept believing in what He first tells us then years, maybe decades would not be wasted wandering the wilderness, not testifying to His goodness and mercy and grace, because we are told that really isn't good enough.