What offends their view is that I in the interest of truth am obliged to say that I and the Father are one and that my educational work is caused by an overshadowing by the Holy Spirit

What is the correctly punctuated version of this sentence?
What offends their view is that I, in the interest of truth, am obliged to say that "I and the Father are one" and that my educational work is caused by "an overshadowing by the Holy Spirit".