1 John 4:18

There is no fear in love (dread does not exist). But perfect (complete, full-grown) love drives out fear, because fear involves (the expectation of divine) punishment, so the one who is afraid (of God’s judgment) is not perfected in love (has not grown into a sufficient understanding of God’s love).

Love based on the knowledge and understanding of the love of God does not fear. Fear is being persuaded that what God says about His promises to us is false. We must have the courage to trust the Lord no matter the circumstance. And we can do that when we truly trust God’s love and His word.