The second great awakening was a religious movement that called on people to live out their faith. The movement emphasis personal salvation and a relationship to God. The revival movement called on people to love all people and obey the writings of the Bible.
The Abolitionist movement was an effort to abolish and outlaw slavery. Many of the converts of the religious movement felt that slavery was incompatible with the love of God and loving all people. These converts supported and became leaders of the abolitionist movement.
George Whitfield a convert of a similar religious movement in England became a political leader in that country. He lead the movement to outlaw slavery in England. This was an inspiration to the abolitionist movement in America.
Sadly the economic power of slavery in America prevented a political solution to the outlawing of slavery in America.