I figured that is what you were getting at. I still do not believe that 'time' as we know it will exist. There will be no need of time. I also believe that God instituted time as an indication for us of things to come.
Gen 1:14-19 "And God said, "Let there be lights in the expanse of the heavens to separate the day from the night. And let them be for signs and for seasons, and for days and years, and let them be lights in the expanse of the heavens to give light upon the earth." And it was so. And God made the two great lights--the greater light to rule the day and the lesser light to rule the night--and the stars. And God set them in the expanse of the heavens to give light on the earth, to rule over the day and over the night, and to separate the light from the darkness. And God saw that it was good. And there was evening and there was morning, the fourth day."
The Sun and the Moon were created to give us signs, and to mark time. What else do we know? That these things we call 'day' and 'night' and 'time' and 'season' all have very spiritual meanings behind them. The 'day' of the Lord, is not a morning and evening as we think of it. It is a time period set forth by God. But yet it is called a "day".
The disciples asked Jesus a rather simple question and they got this in response;
Act 1:6-7 "So when they had come together, they asked him, "Lord, will you at this time restore the kingdom to Israel?" He said to them, "It is not for you to know times or seasons that the Father has fixed by his own authority."
Here we see that God has particular 'times and seasons' that we have no knowledge of. And yet we do know that there can be some things out there that have not yet been, even though Ecc 3:15 seems to say differently. But as far as from a human perspective, then yes, Ecc 3:15 rings true. Why do I say its not true from God's perspective?
Isa 48:1-7 "Hear this, O house of Jacob, who are called by the name of Israel, and who came from the waters of Judah, who swear by the name of the LORD and confess the God of Israel, but not in truth or right. For they call themselves after the holy city, and stay themselves on the God of Israel; the LORD of hosts is his name. "The former things I declared of old; they went out from my mouth, and I announced them; then suddenly I did them, and they came to pass. Because I know that you are obstinate, and your neck is an iron sinew and your forehead brass, I declared them to you from of old, before they came to pass I announced them to you, lest you should say, 'My idol did them, my carved image and my metal image commanded them.' "You have heard; now see all this; and will you not declare it? From this time forth I announce to you new things, hidden things that you have not known. They are created now, not long ago; before today you have never heard of them, lest you should say, 'Behold, I knew them.'"
This was said after the law, after all things given unto men. God declares that they were even created "now", not "long ago". Huh? That almost seems to go against reason does it not? But this is true, 'Let God be true, and every man a lier', and again;
Yet among the mature we do impart wisdom, although it is not a wisdom of this age or of the rulers of this age, who are doomed to pass away. 7 But we impart a secret and hidden wisdom of God, which God decreed before the ages for our glory. 8 None of the rulers of this age understood this, for if they had, they would not have crucified the Lord of glory. 9 But, as it is written,
“What no eye has seen, nor ear heard,
nor the heart of man imagined,
what God has prepared for those who love himâ€â€”
10 these things God has revealed to us through the Spirit. For the Spirit searches everything, even the depths of God. 11 For who knows a person’s thoughts except the spirit of that person, which is in him? So also no one comprehends the thoughts of God except the Spirit of God. 12 Now we have received not the spirit of the world, but the Spirit who is from God, that we might understand the things freely given us by God. 13 And we impart this in words not taught by human wisdom but taught by the Spirit, interpreting spiritual truths to those who are spiritual.
14 The natural person does not accept the things of the Spirit of God, for they are folly to him, and whe is not able to understand them because they are spiritually discerned. 15 The spiritual person judges all things, but is himself to be judged by no one. 16 “For who has understood the mind of the Lord so as to instruct him?†But we have the mind of Christ."
We often think of the 'natural' man as the one who has never believed. I know I have. But in context, and Biblically stating, the 'natural' man is the man who lives in the flesh. The one who walks after the physical not the spiritual. So those who walk after the physical will not grasp what the spiritual is. And those who walk after, live in, the spiritual will be able to understand because they are at one with the mind of Christ. And through His mind, we understand things.
I think this has a TON to do with the Sabbath. I think this study has but only scratched the surface. I find it extremely thought provoking when I read the Old Testament and see that the Sabbath was the one 'law' mentioned more and directly than any other. Well....maybe I am biased on that, I cannot say that I have really sat down and counted them up and came to a solid conclusion. But needless to say it 'pops' up a lot.