Dr. Mensah Otabil was involved in Prophetic Praying, and it's Biblical.

Prophetic Praying involves prophesying in a prayer format as you are directed by the Spirit of God.

The Spirit of God will touch specific areas previously unknown in the natural to the one praying and he in turn prophesies as he receives the word.

The revelation gifts of the Holy Spirit namely, the Word of Wisdom, the Word of Knowledge, and the Gift of the Discernment of spirits will be at work here.

(Sources: Hamon, Bill Dr., The Day of the Saints. Destiny Image Publishers.

2002. Page 415.
Tufuor, Kwadwo Adom Dr., Praying Effective Prayers. Creative Press.

2012. Page 32.)
Insulting Dr. Mensah Otabil for a prophetic prayer he said for Ghana will not solve the problem. The answer lies in fervent prayer.

God reveals secret things to His children in order to keep their souls from the pit.

Job 33:16-18 '16 Then He (God) opens the ears of men,

And seals their instruction.
17 In order to turn man from his deed,
And conceal pride from man,
18 He keeps back his soul from the Pit,
And his life from perishing by the sword. '
Are we going to sit back and allow satanic forces to bring disaster upon our nation?

Pastor Owusu Bempah received similar word from the Spirit of God not long ago.

I also received many messages on Ghana from the Spirit of God as far back as 2006.

(http://www.modernghana.com/news/264308/1/intercede-for-ghana-a-nation-that-is-tearing-apart.html)

These were compiled and published on February 17, 2010 and is

reproduced below (edited for clarity):
17 February 2010 Last updated at 20:18 CET
INTERCEDE FOR GHANA, A NATION THAT IS TEARING APART.

By Adom Tufuor Publishing
A Prophet, Theologian and Author has issued a clarion call to Christians worldwide to intercede for Ghana, a Nation he says is at the brink of tearing apart.

According to Dr. Adom Tufuor, the frequency and urgency of revealed impending disaster is what motivated him to issue this call.

"Vying for political appointments is not the only way to serve our nation. Our intercessory role will be our service to the nation Ghana," he said.

Listed below are some of the revelations and the dates on which they were revealed:

a) An armed insurrection took place in Ghana. July 24, 2006.

b) Intercede for Ghana. Blow away the war cries. October 15, 2008.

c) The new face of the Nation Ghana. March 19, 2009.

d) Mutiny in the Ghana Armed Forces. March 16, 2009.

e) Ghana was partitioned into 5(five) different Nations. March 14, 2009.

f) A recruitment drive. April 6, 2009.
g) Civil War in Ghana resulting in such evil carnage as has never been witnessed in the history of the Nation. There were rampant killings everywhere. April 25, 2009.

h) A Zimbabwe - type of inflation. May 14, 2009.
i) Ghana at the brink of Civil War. Factions were formed through tribal alliances. November 14, 2009.

j ) Hunger in the Nation. December 29, 2009.
k) Anarchy in Ghana. February 3, 2010.
l) Mutiny in the Ghana Armed Forces. February 3, 2010.

m) Leadership crisis in Ghana. February 13, 2010.
"To sustain our peace, we need visionary leaders and steadfast intercessors working together. We can do one of two things:

1. Either we take heed to the word that has been revealed, repent, wage spiritual war against the enemy and expect the Lord of Hosts to lead us into victory, or

2. We can be skeptical, unrepentant and be full of scorn toward the Prophet and the Prophetic word, in which case the enemy will have his way.

But as for me, my house, and my intercessory prayer group, we will continue to intercede for Mother Ghana."

Dr. Kwadwo Adom Tufuor is a member of the US National Communication Association Honor Society, a Communications Consultant, Theologian, and the Author of two books: 'Campaign and Win, One Touch ',

and 'Praying Effective Prayers' available at www.creativepress.org