Recently there has been much controversy about the invitation of T.D. Jakes to speak at an Evangelism Council taking place this December, 2011, at Oakwood University. There is truly no need for this controversy.
First of all, this particular event has more than likely come under such scrutiny because of a very popular YouTube video where pastor T.D. Jakes attacks the Sabbath, which has placed him on the Seventh-day Adventist radar. But, truth be told, this event is not unique (aside from the controversy it has caused) because there are many non-Adventist speakers invited to churches, colleges and other Seventh-day Adventist institutions every year.
Secondly, God has given extremely clear and unambiguous light about this subject through His prophet, Ellen White. So, without further ado, God's thoughts on the matter at hand:
"If God has any new light to communicate, He will let His chosen and beloved understand it, without their going to have their minds enlightened by hearing those who are in darkness and error.
I was shown the necessity of those who believe that we are having the last message of mercy, being separate from those who are daily imbibing new errors. I saw that neither young nor old should attend their meetings; for it is wrong to thus encourage them while they teach error that is a deadly poison to the soul and teach for doctrines the commandments of men. The influence of such gatherings is not good.
If God has delivered us from such darkness and error, we should stand fast in the liberty wherewith He has set us free and rejoice in the truth. God is displeased with us when we go to listen to error, without being obliged to go; for unless He sends us to those meetings where error is forced home to the people by the power of the will, He will not keep us. The angels cease their watchful care over us, and we are left to the buffetings of the enemy, to be darkened and weakened by him and the power of his evil angels; and the light around us becomes contaminated with the darkness." - Early Writings, pp. 124, 125.