Word of god tells us how to have confidence or boldness on the Day of Judgment, and tells us how to cast fear out of our lives; God wants to help us enjoy confidence before him, he does not want us to be paralyzed or depressed by fear of judgment.

But I hope we all take the Day of Judgment seriously; I sometimes wonder if we have abandoned real belief in God's judgment and in the torment of hell which our Lord Jesus spoke of so vividly and so often (Matthew 5:22, 29f.; 10:28; 18:9; 23:15, 33; 10:15; 11:22–24; 12:36–42; John 5:22–30). The word "hell" (gehennam) is used 12 times in the New Testament,11 of them on the lips of Jesus and besides that, he spoke of judgment and "the day of judgment" for example, Jesus said to his disciples in Matthew 10:14:

“And if anyone will not receive you or listen to your words, shake off the dust from your feet as you leave that house or town. Truly, I say to you, it shall be more tolerable on the day of judgment for the land of Sodom and Gomorrah than for that town.”

The Lord has warned us so clearly: it is appointed unto man once to die and after that comes judgment (Hebrews 9:27), he has spoken of the horror of hell, and if your eye causes you to sin, pluck it out, It is better for you to enter the kingdom of God with one eye than with two eyes to be thrown into the hell, where their worm does not die and the fire is not quenched. (Mark 9:47–48)

According to 1 John 4:17–18 there is a way to approach the day of judgment with fearless confidence; no one who is willing to follow John's teaching needs to be frightened at the approach of death, none of us who accepts this teaching will have to approach the judgment seat of God with our fingers crossed, wondering if we are going to make it, John wrote this book to give us "confidence for the day of judgment" and to "cast out fear."

1.     In this is love perfected with us,

2.     that we may have confidence for the day of judgment,

3.     because as he is so are we in this world.

It says that the result of having love perfected with us is confidence for the day of judgment; and it says that the reason perfected love gives confidence is that it shows that we are like Christ.

God's abiding in us and love being perfected in us, "No man has ever seen God; if we love one another, God abides in us and his love is perfected in us" in other words perfected love refers to God's love in us coming to completion or coming into action as we love each other, "If we love one another his love is perfected in us," So "perfected love" is the love of God expressing itself in our love to each other.

"If we love one another, God abides in us, and his love is perfected in us." Following the normal usage of the word, we would take this to mean NOT that our love for each other is a flawless expression of God's love, but that it is God's love being put into action God's love reaching its appointed goal in practical human love, perfected love is not just an incomplete idea or emotion or potential in the heart, it is completed, accomplished, put into action and in that sense "perfected."

Perfected love is not flawless love, Perfected love is when you don't just talk about the need to share Christ, you do it! it's when you don't just talk about the hungry, you feed them, it's when you don't just talk about floundering new believers, you disciple them and so on…..

The result of having love perfected with us is that we have confidence for the day of judgment, "In this is love perfected with us, that we may have confidence in the day of judgment." by Putting God's Love into Action for others, by putting God's love into action for other people, we don't gain confidence because we are sinlessly perfect in the way we love, we gain confidence by putting our money where our mouth is, Love Not in Word or Speech but in Deed and Truth.

The assumption is that at the judgment day God won't condemn people who are like his Son, living a life of active love shows that we have the Spirit of Jesus; it shows we belong to the family of God, and that gives us confidence before God, you can't live at odds with the character of Jesus and then expect to have any confidence when you stand before his Father at the final judgment, but if the current of your life is like his, you can have confidence before his Father.

We are God's children now; it does not yet appear what we shall be, but we know that when he appears we shall be like him, for we shall see him as he is, and every one who thus hopes in him purifies himself as he is pure, we know we will be like him when he comes! That's boldness at the day of judgment! "Every one who thus hopes in him purifies himself as he is pure." "As he is so are we in the world." We share his purity and so assure ourselves that we truly hope in him.

When you love each other with love that is more than just talk, when the love of God reaches its practical goal of action in your life, you will experience a deep and unshakable confidence before God; much talk of love with few deeds of love destroys assurance, we've all experienced this from time to time, our conscience condemns us because we think of deeds of love and don't do them, but if we put our money where our mouth is, or put our time where our tongue is, then we will have a deep sense of the reality of our own faith and will feel confident for the day of judgment, because then we are acting the way Jesus acted.

How to get rid of fear about the day of judgment, how to have confidence for the day of judgment, how not to have fear for the day of judgment, and both give the same answer: "perfect" or "perfected" love.

Walking in the light and being perfected in love are the same thing, neither atones for sin, both certify that we are born of God and so attached to Christ in such a way that his blood avails for us.

In this is love perfected with us, that we may have confidence for the Day of Judgment, because as he is so are we in this world. There is no fear in love, but perfect love casts out fear. For fear has to do with punishment, and he who fears is not perfected in love.

There is no fear in love, but perfect love casts out fear. For fear has to do with punishment, and he who fears is not perfected in love.