A prophetic word is any word from God that strengthens, encourages, and comforts.
To be sure it’s from God, it is prudent to always have a prophetic word tied to scripture.

When a verse or passage jumps off the page of your Bible as being for you or for someone else, sharing that verse with them is a prophetic word. But it’s also important to share the message behind the verse. In other words, when you read it, what did the Lord lay on your heart? Otherwise, it might not be entirely clear to others what they are to glean from it. And the reason is because the Lord didn’t give them the prophetic word. He gave it to you! Others will be much more encouraged and inspired and informed if you helped them understand the significance of the prophetic truth for them behind the Scripture.

So, when God places a Scripture on your heart, also share what it is that you believe the Lord is saying through that Scripture. For example, you might lead off with a declaration of what God is saying in a verse(i.e., what is in italics below). And then give the underlying Scripture.

‘This is what the Sovereign LORD says: I myself will take a shoot from the very top of a cedar and plant it; I will break off a tender sprig from its topmost shoots and plant it on a high and lofty mountain.

He has planted this church…He Himself did it so it is good as it’s of Him. And this church was not just planted from the throwaways on the ground…but from the uppermost branches- the place where the sun hits first, to the place that is strongest as it’s the farthest reaches to which water from the roots has to reach.

On the mountain heights of Israel I will plant it;

He has planted this church at the top of a mountain…not in a valley where it won’t be seen, but in a place where its effects will be seen and felt by many. It occurs to me that a mountain is also a vantage point from which we would be able to see the enemy coming…no worries that we will be sneaked upon.

it will produce branches and bear fruit and become a splendid cedar.

This Body will not lie fallow, but rather will produce results and become beautiful in God’s site because of its splendor.

Birds of every kind will nest in it; they will find shelter in the shade of its branches.

This church as a Body (its people) will be a resting place for the weary (those who need shelter). “Birds of every kind”–we are not meant to minister to just a certain type of people but rather to all types of people. It also occurs to me that birds only nest for periods of time…never a permanent resting place, so this continues the thought that this won’t be a church where most people will stay forever, but may be a more seasonal church

All the trees of the forest will know that I the LORD bring down the tall tree and make the low tree grow tall. I dry up the green tree and make the dry tree flourish.

“bring down the tall tree” — those of great maturity will be brought down (perhaps to lift others up)

“the low tree grow tall” — those of less “maturity” will grow (in direct relation to the tall tree being brought down. This correlates very strongly with the idea that leaders will come under those with less experience and raise them up.

“I will dry up the green tree and make the dry tree flourish”

My actual take on this is a little strange and I don’t know if it’s right, but I see this as a literal “emptying” of those of great spiritual maturity…but not to their detriment…instead, so that they can fill those of less maturity. The picture I get is from that song “Desert Song” by Hillsong where she sings, “I know that I’m filled to be emptied again, the seed I’ve received I will sow.”

” ‘I the LORD have spoken, and I will do it.’ ”

Because He has said it, it will come to pass.