# This plan was made known through the church

"God made this plan known by means of the church" 

# rulers and authorities

Paul uses these words together to emphasize that every spiritual being will know God's wisdom. 

# in the heavenly places

"in the supernatural world." The word "heavenly" refers to the place where God is. 

# the many-sided nature of the wisdom of God

"the great and complex wisdom of God"