How did reform movements like the second great awakening and the abolition movement lead to tension over slavery

The abolition movement:

Slavery was seen by the abolitionists as a monstrosity and an abnormality on the United States, rendering it their mission to abolish slave ownership. They submitted letters to Congress, stood for political office and overwhelmed the people of the South with publications against slavery. The antagonism and resentment sparked by the revolution, along with other variables, led to the Civil War and eventually to the end of American slavery.

The second great awakening:

In US, at the early time of 19th century, a Protestants spiritual movement expanded Christianity via revivals and intense preaching brought popularity as the "second great awakening". Such campaign prompted a series of transformation measures that drew hundreds of converts into new Protestant denominations, which ultimately resulted into a period of antebellum social change and an institutional focus on redemption. Over the time their American people grew rapidly, characterizing its territorial expansion by the great leap westward and brought relief as a result of socio-political shifts in America, in the face of instability.