'Forever, O LORD, Your Word is settled in heaven.' [Psalm 119:89]
'Then the LORD said to me, "You have seen well, for I am watching over My word to perform it."' [Jeremiah 1:12]
"So will My word be which goes forth from My mouth; it will not return to Me empty, without accomplishing what I desire, and without succeeding in the matter for which I sent it." [Isaiah 55:11]
What's really interesting is that, even though His Word is settled forever and His works are finished from the foundation of the world, in both Isaiah 55:11 and Jeremiah 1:12, He uses an active present tense to describe His watchfulness over His Word or thing. What does this mean?
Not exactly. As Christians, we exist on two planes. We live in a physical, time-bound, earth-based body; earthen vessel, temple of God, etc.
So here we are, on earth, and in heaven, at the same time. His Word for us—every promise—is already accomplished in heaven. And, we have the promise of 2 Corinthians 1:20 in the earth: 'For as many as are the promises of God, in Him [Jesus] they are yes...'
'The Lord gives the command; the women who proclaim the good tidings are a great host: "Kings of armies flee, they flee, And she who remains at home will divide the spoil!"'
The good news is that this doesn't just work on the grand scale of prophetic history. It works every day, individually and corporately, in the lives of men and women who will obey and speak—announce or proclaim—His Word into the earth!