There is no doubt that there were many founders who were vehemently against slavery. Noah Webster, Gov. Morris, and many more. I do not think that these honorable men had an economic motive for wanting to be rid of slavery. Most of the Christian founders were motivated by their faith in God, not by money (all men are created equal according to God) - that is a lie and a myth being foisted upon university students that simply does not jive with their writings.
Clearly, the founders placed America under the sovereignty of the God of the bible. That is plain from reading the Declaration of Independence which acknowledges God is the giver of rights, not the state. Clearly, Both the church and the State were under God's sovereign authority. One motivation for the Constitution was to "SECURE" those God-given rights, not to subvert them as the rogue courts are doing today.