'Completeness' in the Bible

the completeness of Him who everywhere fills the universe with Himself.

yes, to attain to a knowledge of the knowledge-surpassing love of Christ, so that you may be made complete in accordance with God's own standard of completeness.

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].