Freedom from sin
but as he who called you is holy, you also be holy in all your conduct, since it is written, “You shall be holy, for I am holy.” (1 Peter 1:15–16)
The New Testament writers sometimes address the Christians as ‘Holy and beloved’ (e.g. Colossians 3:12). To modern ears, however, the words ‘holy’ or ’saints’ sound unusual, old-fashioned, far from everyday life, unreachable and fitting only very few, special people.
Is this true or does the Bible rather say that a holy life is inseparably linked with our relationship with God?

This is the message we have heard from him and declare to you: God is light; in him there is no darkness at all. If we claim to have fellowship with him and yet walk in the darkness, we lie and do not live out the truth. But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus, his Son, purifies us from all sin. (1 John 1:5–7)
Indeed, God’s command to be holy serves to prepare us for eternity. Without this, we cannot have fellowship with him who is absolutely holy—neither now, nor in eternity. Holiness is not a kind of entrance exam for heaven, an exam which God could change if he wanted; rather it arises out of God’s very being as well as our own.
The passages mentioned above emphasize the absolute holiness of God and the subsequent necessity of allowing our WHOLE life to be purified by God. They also emphasize the necessity of giving up every sin. The attitude of wanting to be holy as God is holy characterizes a Christian. Many religious people do not really strive for this goal. However, through God’s salvation and the strength he gives us if we turn to him, we can take up the fight against sin with hope.
All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, so that the servant of God may be thoroughly equipped for every good work. (2 Timothy 3:16–17)
The Holy Scripture shows us the way of righteousness, especially in the words and lives of the prophets, and of Jesus and his disciples. It teaches us what sin is and how we can overcome it.
Holy life requires fight against sin
God made man in his image. When man sinned, his being was distorted and his relationship with God and fellow man got disturbed. Sin separates people from God and leads them to a life of selfishness and loneliness.
That is why Jesus uses such radical pictures to describe how strongly we should hate and reject sin.
And if your hand causes you to sin, cut it off. It is better for you to enter life crippled than with two hands to go to hell, to the unquenchable fire. […] And if your eye causes you to sin, tear it out. It is better for you to enter the kingdom of God with one eye than with two eyes to be thrown into hell, (Mark 9:43 and 47)
This is not an empty threat made by Jesus in order to frighten us. Jesus wants to show a spiritual reality. Sins change people, deceive them, harden them and take away their longing for God and for what is good–sin separates people from God. In Colossians 3:5 Paul describes this:
Put to death therefore what is earthly in you: sexual immorality, impurity, passion, evil desire, and covetousness, which is idolatry.
Sin starts in our attitudes and thoughts. That is where the roots for the resulting actions lie.
But I say to you that everyone who looks at a woman with lustful intent has already committed adultery with her in his heart. (Matthew 5:28)
“You have heard that it was said to those of old, ‘You shall not murder; and whoever murders will be liable to judgement.’ But I say to you that everyone who is angry with his brother will be liable to judgement; whoever insults his brother will be liable to the council; and whoever says, ‘You fool!’ will be liable to the hell of fire. (Matthew 5:21–22)
So whoever knows the right thing to do and fails to do it, for him it is sin. (James 4:17)
Sins of omission are often not assessed by people as strongly as the Bible does. Frequently we come across people who see sins such as not endeavoring for brothers and sisters in faith or not reading the Bible as insignificant. These sins show the lack of relationship with God very clearly.
There is no excuse for sin.
No temptation has overtaken you that is not common to man. God is faithful, and he will not let you be tempted beyond your ability, but with the temptation he will also provide the way of escape, that you may be able to endure it. (1 Corinthians 10:13)
Victory over sin was commanded and considered possible even in the Old Testament
The LORD said to Cain, “Why are you angry, and why has your face fallen? If you do well, will you not be accepted? And if you do not do well, sin is crouching at the door. Its desire is for you, but you must rule over it.” (Genesis 4:6–7)
With great love and mercy God approaches everyone who struggles to distance themselves from sin and entrust their life to him. However, the wrath of God is great upon those who do not call their sins by their name (Matthew 3:7–8) and excuse themselves with their own weakness, because:
Behold, the LORD’s hand is not shortened, that it cannot save, or his ear dull, that it cannot hear; but your iniquities have made a separation between you and your God, and your sins have hidden his face from you so that he does not hear. (Isaiah 59:1–2)
that no one is sexually immoral or unholy like Esau, who sold his birthright for a single meal. For you know that afterwards, when he desired to inherit the blessing, he was rejected, for he found no chance to repent, though he sought it with tears. (Hebrews 12:16–17)
Forgiveness of sin is a great gift. It is important to be aware of its great value. We cannot treat it like a cheap bargain because Jesus gave his life in order to save us from our sins. That is why we should live our lives as people who are saved from sin, and not as those who cling to sin.
knowing that you were ransomed from the futile ways inherited from your forefathers, not with perishable things such as silver or gold, but with the precious blood of Christ, like that of a lamb without blemish or spot. (1 Peter 1:18–19)
Free from sin
Psalm 32:3–5 and Proverbs 28:13 express that confession of sins is the only way to find forgiveness and freedom.
Whoever conceals his transgressions will not prosper, but he who confesses and forsakes them will obtain mercy. (Proverbs 28:13)
It is important and good to confess our sins to God, but true regret is shown by bringing them to the light before people as well. If we live in the truth, we should also walk in the truth before our brothers and sisters.
If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness. (1 John 1:9)
Not only when we start our life with Christ is it important to leave behind us everything that tied us to the world and to bring our sins to the light but also throughout our Christian life we should confess our sins to our brothers and sisters and pray for one another so that we can be made holy, as James writes in his letter in chapter 5:16. It is not the task of specially trained ministers/counselors to bear the responsibility for the confessions of the believers—ministers who are then sworn to secrecy. No base for such practice can be found in the Bible. On the contrary, the deep trust in all fellow believers and the wish of standing before others as I truly am before God should be a testimony of God’s acting in the Church. Only in this way is it possible for brothers and sisters to really help each other—in laying our sins open before one another, receiving forgiveness, being carried in their prayers and also in supporting each other’s sanctification by encouragements and admonitions.
In John 13:2–17 Jesus washed his disciples’ feet and in doing so set an example of how we should serve one another. He showed his great love by humbling himself before people who were themselves enslaved by sin. We should learn from him to become small before one another and to bear one another in love. By this we will grow in sanctification ourselves and can help others to grow as well. Serving one another cannot be separated from caring for the salvation of others—taking care that they grow in faith, become mature and that no sin hinders them from being close to God.
God made each Christian able to support others so that the whole body can be built into a holy temple (Ephesians 2:21). Thus he gives the responsibility to care for each other to every member of the whole Church. Therefore:
Strive for peace with everyone, and for the holiness without which no one will see the Lord. (Hebrews 12:14)