14 Do not be unequally yoked with unbelievers [do not make mismated alliances with them or come under a different yoke with them, inconsistent with your faith]. For what partnership have right living and right standing with God with iniquity and lawlessness? Or how can light have fellowship with darkness?
15 What harmony can there be between Christ and Belial [the devil]? Or what has a believer in common with an unbeliever?
16 What agreement [can there be between] a temple of God and idols? For we are the temple of the living God; even as God said, I will dwell in and with and among them and will walk in and with and among them, and I will be their God, and they shall be My people.
17 So, come out from among [unbelievers], and separate (sever) yourselves from them, says the Lord, and touch not [any] unclean thing; then I will receive you kindly and treat you with favor,
18 And I will be a Father to you, and you shall be My sons and daughters, says the Lord Almighty.
Therefore since these [great] promises are ours, beloved, let us cleanse ourselves from everything that contaminates and defiles body and spirit, and bring [our] consecration to completeness in the [reverential] fear of God.
2 Corinthians 6:14-7:1 from the Amplified Bible
15 Do not love or cherish the world or the things that are in the world. If anyone loves the world, love for the Father is not in him.
16 For all that is in the world--the lust of the flesh [craving for sensual gratification] and the lust of the eyes [greedy longings of the mind] and the pride of life [assurance in one's own resources or in the stability of earthly things]--these do not come from the Father but are from the world [itself].
17 And the world passes away and disappears, and with it the forbidden cravings (the passionate desires, the lust) of it; but he who does the will of God and carries out His purposes in his life abides (remains) forever.
1 John 2:15-17 from the Amplified Bible
1 I appeal to you therefore, brethren, and beg of you in view of [all] the mercies of God, to make a decisive dedication of your bodies [presenting all your members and faculties] as a living sacrifice, holy (devoted, consecrated) and well pleasing to God, which is your reasonable (rational, intelligent) service and spiritual worship.
2 Do not be conformed to this world (this age), [fashioned after and adapted to its external, superficial customs], but be transformed (changed) by the [entire] renewal of your mind [by its new ideals and its new attitude], so that you may prove [for yourselves] what is the good and acceptable and perfect will of God, even the thing which is good and acceptable and perfect [in His sight for you].
Romans 12:1-2 Amplified Bible
27 External religious worship [religion as it is expressed in outward acts] that is pure and unblemished in the sight of God the Father is this: to visit and help and care for the orphans and widows in their affliction and need, and to keep oneself unspotted and uncontaminated from the world.
James 1:27 from the Amplified Bible
9 I am praying for them. I am not praying (requesting) for the world, but for those You have given Me, for they belong to You.
10 All [things that are] Mine are Yours, and all [things that are] Yours belong to Me; and I am glorified in (through) them. [They have done Me honor; in them My glory is achieved.]
11 And [now] I am no more in the world, but these are [still] in the world, and I am coming to You. Holy Father, keep in Your Name [[a]in the knowledge of Yourself] those whom You have given Me, that they may be one as We [are one].
12 While I was with them, I kept and preserved them in Your Name [[b]in the knowledge and worship of You]. Those You have given Me I guarded and protected, and not one of them has perished or is lost except the son of perdition [Judas Iscariot--the one who is now doomed to destruction, destined to be lost], that the Scripture might be fulfilled.
13 And now I am coming to You; I say these things while I am still in the world, so that My joy may be made full and complete and perfect in them [that they may experience My delight fulfilled in them, that My enjoyment may be perfected in their own souls, that they may have My gladness within them, filling their hearts].
14 I have given and delivered to them Your word (message) and the world has hated them, because they are not of the world [do not belong to the world], just as I am not of the world.
15 I do not ask that You will take them out of the world, but that You will keep and protect them from the evil one.
16 They are not of the world (worldly, belonging to the world), [just] as I am not of the world.
17 Sanctify them [purify, consecrate, separate them for Yourself, make them holy] by the Truth; Your Word is Truth.
John 17:9-17 from the Amplified Bible