In 1 John 4:12, love is perfected among us through mutual love—the same perfected love that casts out fear in verse 18.

1 John 2:5 explains that the love of God is perfected in those who keep his word—the same perfected love that casts out fear in verse 18.

Romans 8:15 contrasts a spirit of fear with adoption — the same fear that perfect love drives out.

2 Timothy 1:7 says God gave a spirit of love, not fear — directly parallel to love driving out fear.

James 2:19 notes demons believe and shudder — a fear without love, contrasting with love that casts out fear.

Luke 19:21 shows a servant's fear of his severe master—a fear of punishment that parallels the fear connected to punishment in verse 18.

James 2:13 says mercy triumphs over judgment—the judgment fear anticipates is overcome by mercy, echoing how perfect love casts out fear.