'Fullness' in the Bible

You brood of vipers, how can you speak good things when you are evil? For the mouth speaks out of that which fills the heart.

For out of His fullness [the superabundance of His grace and truth] we have all received grace upon grace [spiritual blessing upon spiritual blessing, favor upon favor, and gift heaped upon gift].

which is His body, the fullness of Him who fills and completes all things in all [believers].

and [that you may come] to know [practically, through personal experience] the love of Christ which far surpasses [mere] knowledge [without experience], that you may be filled up [throughout your being] to all the fullness of God [so that you may have the richest experience of God’s presence in your lives, completely filled and flooded with God Himself].

until we all reach oneness in the faith and in the knowledge of the Son of God, [growing spiritually] to become a mature believer, reaching to the measure of the fullness of Christ [manifesting His spiritual completeness and exercising our spiritual gifts in unity].

who, although He existed in the form and unchanging essence of God [as One with Him, possessing the fullness of all the divine attributes—the entire nature of deity], did not regard equality with God a thing to be grasped or asserted [as if He did not already possess it, or was afraid of losing it];

For it pleased the Father for all the fullness [of deity—the sum total of His essence, all His perfection, powers, and attributes] to dwell [permanently] in Him (the Son),

For in Him all the fullness of Deity (the Godhead) dwells in bodily form [completely expressing the divine essence of God].

And in Him you have been made complete [achieving spiritual stature through Christ], and He is the head over all rule and authority [of every angelic and earthly power].