What Does the Bible Say About Holiness?

"The LORD spoke to Moses, saying, “Speak to all the congregation of the children of Israel, and tell them, ‘You shall be holy; for I, the LORD your God, am holy. “‘Each one of you shall respect his mother and his father. You shall keep my Sabbaths. I am the LORD your God. “‘Don’t turn to idols, nor make molten gods for yourselves. I am the LORD your God. “‘When you offer a sacrifice of peace offerings to the LORD, you shall offer it so that you may be accepted. It shall be eaten the same day you offer it, and on the next day. If anything remains until the third day, it shall be burned with fire. If it is eaten at all on the third day, it is an abomination. It will not be accepted; but everyone who eats it shall bear his iniquity, because he has profaned the holy thing of the LORD, and that soul shall be cut off from his people. “‘When you reap the harvest of your land, you shall not wholly reap the corners of your field, neither shall you gather the gleanings of your harvest. You shall not glean your vineyard, neither shall you gather the fallen grapes of your vineyard. You shall leave them for the poor and for the foreigner. I am the LORD your God. “‘You shall not steal. “‘You shall not lie. “‘You shall not deceive one another. “‘You shall not swear by my name falsely, and profane the name of your God. I am the LORD."

This passage is the starting point because it gives the reading its main biblical weight: The law, prophets, Jesus, and apostles connect holiness to worship, justice, purity, love, and the Spirit's work.

"Peter, an apostle of Jesus Christ, to the chosen ones who are living as foreigners in the Dispersion in Pontus, Galatia, Cappadocia, Asia, and Bithynia, according to the foreknowledge of God the Father, in sanctification of the Spirit, that you may obey Jesus Christ and be sprinkled with his blood: Grace to you and peace be multiplied. Blessed be the God and Father of our Lord Jesus Christ, who according to his great mercy caused us to be born again to a living hope through the resurrection of Jesus Christ from the dead, to an incorruptible and undefiled inheritance that doesn’t fade away, reserved in Heaven for you, who by the power of God are guarded through faith for a salvation ready to be revealed in the last time. In this you greatly rejoice, though now for a little while, if need be, you have been grieved in various trials, that the proof of your faith, which is more precious than gold that perishes, even though it is tested by fire, may be found to result in praise, glory, and honor at the revelation of Jesus Christ— whom, not having known, you love. In him, though now you don’t see him, yet believing, you rejoice greatly with joy that is unspeakable and full of glory, receiving the result of your faith, the salvation of your souls. Concerning this salvation, the prophets sought and searched diligently. They prophesied of the grace that would come to you,"

This passage broadens the topic by showing how holiness belongs inside God's larger story rather than a single isolated concern.

"Therefore let’s also, seeing we are surrounded by so great a cloud of witnesses, lay aside every weight and the sin which so easily entangles us, and let’s run with perseverance the race that is set before us, looking to Jesus, the author and perfecter of faith, who for the joy that was set before him endured the cross, despising its shame, and has sat down at the right hand of the throne of God. For consider him who has endured such contradiction of sinners against himself, that you don’t grow weary, fainting in your souls. You have not yet resisted to blood, striving against sin. You have forgotten the exhortation which reasons with you as with children, “My son, don’t take lightly the chastening of the Lord, nor faint when you are reproved by him; for whom the Lord loves, he disciplines, and chastises every son whom he receives.” It is for discipline that you endure. God deals with you as with children, for what son is there whom his father doesn’t discipline? But if you are without discipline, of which all have been made partakers, then you are illegitimate, and not children. Furthermore, we had the fathers of our flesh to chasten us, and we paid them respect. Shall we not much rather be in subjection to the Father of spirits and live? For they indeed for a few days disciplined us as seemed good to them, but he for our profit, that we may be partakers of his holiness."

This passage broadens the topic by showing how holiness belongs inside God's larger story rather than a single isolated concern.

"Therefore I urge you, brothers, by the mercies of God, to present your bodies a living sacrifice, holy, acceptable to God, which is your spiritual service. Don’t be conformed to this world, but be transformed by the renewing of your mind, so that you may prove what is the good, well-pleasing, and perfect will of God. For I say through the grace that was given me, to everyone who is among you, not to think of yourself more highly than you ought to think; but to think reasonably, as God has apportioned to each person a measure of faith. For even as we have many members in one body, and all the members don’t have the same function, so we, who are many, are one body in Christ, and individually members of one another, having gifts differing according to the grace that was given to us: if prophecy, let’s prophesy according to the proportion of our faith; or service, let’s give ourselves to service; or he who teaches, to his teaching; or he who exhorts, to his exhorting; he who gives, let him do it with generosity; he who rules, with diligence; he who shows mercy, with cheerfulness. Let love be without hypocrisy. Abhor that which is evil. Cling to that which is good. In love of the brothers be tenderly affectionate to one another; in honor prefer one another, not lagging in diligence, fervent in spirit, serving the Lord,"

The apostolic letters press holiness into the life of the church, where doctrine becomes worship, speech, habits, and love.

"Finally then, brothers, we beg and exhort you in the Lord Jesus, that as you received from us how you ought to walk and to please God, that you abound more and more. For you know what instructions we gave you through the Lord Jesus. For this is the will of God: your sanctification, that you abstain from sexual immorality, that each one of you know how to control his own body in sanctification and honor, not in the passion of lust, even as the Gentiles who don’t know God, that no one should take advantage of and wrong a brother or sister in this matter; because the Lord is an avenger in all these things, as also we forewarned you and testified. For God called us not for uncleanness, but in sanctification. Therefore he who rejects this doesn’t reject man, but God, who has also given his Holy Spirit to you. But concerning brotherly love, you have no need that one write to you. For you yourselves are taught by God to love one another, for indeed you do it toward all the brothers who are in all Macedonia. But we exhort you, brothers, that you abound more and more; and that you make it your ambition to lead a quiet life, and to do your own business, and to work with your own hands, even as we instructed you, that you may walk properly toward those who are outside, and may have need of nothing."

This passage broadens the topic by showing how holiness belongs inside God's larger story rather than a single isolated concern.