'Completed' in the Bible

but He has said to me, “My grace is sufficient for you [My lovingkindness and My mercy are more than enough—always available—regardless of the situation]; for [My] power is being perfected [and is completed and shows itself most effectively] in [your] weakness.” Therefore, I will all the more gladly boast in my weaknesses, so that the power of Christ [may completely enfold me and] may dwell in me.

Finally, believers, rejoice! Be made complete [be what you should be], be comforted, be like-minded, live in peace [enjoy the spiritual well-being experienced by believers who walk closely with God]; and the God of love and peace [the source of lovingkindness] will be with you.