'Perfected' in the Bible

But whoever keeps his word, truly in this person the love of God has been perfected. By this we know that we are in him.

No one has seen God at any time. If we love one another, God resides in us and his love is perfected in us.

By this love is perfected with us, so that we may have confidence in the day of judgment, because just as that one is, [so] also are we in this world.

[There] is no fear in love, but perfect love drives out fear, because fear includes punishment, and the one who is afraid has not been perfected in love.