A revelation of Messiah was given to His learners, John 8:32
KJV
"and ye shall know the truth and the truth shall make you free."
or
"and you will have knowledge of what is true" (The New Testament in
Basic English)
"and that very truth will make you free." (The New Testament According to the Eastern Texts)
You will know the truth in intimate personal revelation (because you
study to show yourself up to the challenge) and the truth you know
(in intimate personal revelation of the mind and Spirit)will liberate
you in every realm of life, to which you apply His truth, to defeat
the challenge opposing you.
(GAJ)

To say it plainly, when a person comes to accept the truth of their
New Covenant, as their personal truth, as it pertains to any situation, subject, occurrence or threat, then, that truth that they
have made their own will bring their victory.

Don't quit on the truth. Let it run its course and deliver its
victory, for you.

To repeat a truth from God's promises, is to enforce and empower
it within you. Each time you repeat His truth, your mind is being
washed from the lie that opposes you. Each time you speak His truth,
as it pertains to the lie opposing your position in Him, faith is
infused with strength from your inner being.

To say, repeatedly or confess over me, what His eternal Word has said
about me, is to take on His nature in that cause.

I say what He has said. I cofess as my opinion what He has said.
I repeatedly decree His Word as it addresses my current need. This
is the release mechanism through which faith is empowered to
produce for me, unhindered by the fear, frustration, helplessness
or despair that opposes me.

Keeping His Word continually in my mouth, washes my mind from false
belief's, infuses my "inner man" with spiritual strength and puts
the evil one on the run.

God and His Word are one!

When His Word is in my mouth, God is present in my speaking His
Word.

When I interject the Father's Holy Word, I am releasing Him and His
power into the situation that opposes my status as a Blessed Son of
God.

The Word of the Father created the world and all that is in it.
When I speak His Word, into His world, the world is once again
brought under His Authority. What had gotten out of alignment
with His Word, is now brought back into order His Word as He,
His Word and I agree on it.

Good water (the washing of the Word) and evil water (the drowning
effect of unbelief) should not, flow from the same faucet (the
mouth of man).

The fruit of the tree should be good or evil, not both.

The Believer is a tree, "a planting of the Lord", the fruit they
produce (words, deeds, attitudes) should be good, always. The
Believer's fruit should look and sound like the Father's fruit.
Say what He said.

To repeat a lie, a problem, an opposition to your God given position
IN HIM, is to empower or reinforce the power of the lie to contain
you.

Never ever speak the problem, the lie, the threat. Instead speak
what your New Covenant says belongs to you.

"Let the weak say, (whatever "It is Written" in His Covenant Promises
to you) I am strong"

"I will say of the Lord, He is my strength and my salvation"

"Your praise (speaks of what He has done) shall continually be in
my mouth"

"Since we then have a great High Priest who has ascended into
Heaven, Jesus the Christ, the Son of God, let us cling to what
we cofess (our profession of faith in His promises)."

Equal amounts of good and evil professions from one's mouth, will
defeat the speaker. There are no negatives in faith speak.