This was so that, to future ages [of people on earth and in heaven], God could demonstrate the tremendous abundance of His unearned favor, expressed by His kindness to us in [fellowship with] Christ Jesus.

It was not the result of your own [good] deeds [See Titus 3:5], so that no one could boast [about it].

by abolishing in His fleshly body the [entire Jewish] law of commandments contained in decrees. [This was] so that He could create in [unity with] Himself one new person [i.e., the church] out of the two peoples [i.e., Jews and Gentiles], thereby bringing about peace [between them].

To me, [though I am] the very least of all the saints (God’s people), this grace [which is undeserved] was graciously given, to proclaim to the Gentiles the good news of the incomprehensible riches of Christ [that spiritual wealth which no one can fully understand],

This was done so that now God's many-sided wisdom could be made known through the church, to the rulers and authorities in the heavenly realms [Note: "Heavenly realms" here refers to the world around us, where these angelic beings (good or bad) view the unfolding of God's wonderful plan],

May there be to God, who is able to do infinitely more [for us] than we could [even] ask or think, according to [His] power at work in us ---

The One who descended [i.e., from heaven to earth] is the same One [i.e., Christ] who also ascended high above the all the heavens, so that He could fill the entire universe [with His presence]).

so that He could dedicate her [to Himself], after cleansing her by means of the washing of water [i.e., immersion], accompanied by the word. [Note: "The word" here refers either to a person's profession of faith (See Rom. 10:9) or to the Gospel message (See Rom. 10:17), both of which are associated with immersion].

[This is] so He could present the church to Himself in all her splendor, without any kind of stain or wrinkle, but that she should be holy and without [moral] flaw.

For this reason, take up the whole armor of God so that you may be able to take a stand whenever evil comes. And when you have done everything you could, you will be able to stand firm.