"IN" - BUT "NOT OF"
Being holy is all about Believers being alive to God and living differently while having much the same needs of soul and body as the rest of society.
It is a life of being distinctly spiritual and at the same time obviously natural.
The world is ungodly and unholy. Believers "are not of the world" (John 17'16) but sojourners and pilgrims (1 Peter 2'11).
Being godly and holy has challenges for these pilgrims. Nevertheless, Jesus encouraged His People:
"These things I have spoken to you, that in Me you may have peace. In the world you will have tribulation; but be of good cheer, I have overcome the world," John 16'33.
Paul could say of himself and Timothy:
"... we conducted ourselves in the world in simplicity and godly sincerity, not with fleshly wisdom but by the grace of God," 2 Corinthians 1'12.
The enemy lays traps to lure Believers into becoming comfortable among unbelievers and to all intents and purposes being one of them.
This is why 1 Corinthians 11'28 says:
"... let a man examine himself, and so let him eat of the bread and drink of the cup".
Take stock. Look around. Pray. Put God's Kingdom first. Hear the word of Christ and receive the blessings of holiness:
"Do not be unequally yoked together with unbelievers. For what fellowship has righteousness with lawlessness? And what communion has light with darkness?
And what accord has Christ with Belial? Or what part has a believer with an unbeliever?
And what agreement has the temple of God with idols? For you are the temple of the living God. As God has said: 'I will dwell in them and walk among them. I will be their God, and they shall be My people.'
Therefore 'Come out from among them and be separate, says the Lord. Do not touch what is unclean, and I will receive you.
I will be a Father to you, and you shall be My sons and daughters, says the Lord Almighty'.
Therefore, having these promises, beloved, let us cleanse ourselves from all filthiness of the flesh and spirit, perfecting holiness in the fear of God," 2 Corinthians 6'14-7'1.
"... looking for and hastening the coming of the day of God," 2 Peter 3'12.
Prayer. Heavenly Father, thank you for sending Jesus to pay the ransom for every Believer's redemption.
And thank you, too, for the abundant supply of the Holy Spirit's grace and power.
In Jesus' name. Amen.