Here is a prayer at the end of a sermon on the subject of the slave trade, by one of the first trans-Atlantic chemists, Joseph Priestley (1788):

Bless our native country. May we continue to share thy favour, in the enjoyment of our liberties, civil and religious; and in consequence of making a suitable improvement of our many advantages, may we be that happy people whose God is the Lord. If any individual of our nation, from an inordinate love of gain, have been guilty of injustice and oppression, above those of other nations, may the generosity of others be roused to greater exertions, in order to put a stop to it; and, as far as possible, may reparations be made for past wrongs, by our superior regard to equity and humanity in future time.

– Pauline Bower, compiler (2007) You made us to be free: prayers to mark the bicentenary of the abolition of the slave trade. Oxford: Church Mission Society. ISBN 978-0-85273-088-1.