God commissioned His servants and taught them, “I am your Father.” He taught people through His servants and angels. Such was the Old Testament Age. Next, He worked through His son. This was the New Testament Age. Next, He worked through the Holy Spirit.
Rev. Sun Myung Moon discusses the providence and use of Angels and where fallen humanity stands in relation to the archangel Satan…
천성경. Cheon Seong Gyeong. Family Federation for World Peace and Unification. Sunghwa Publishing Company. May 2006. (111-119)