1. A present discussion of being spiritual.
1 Now concerning spiritual gifts, brothers, I do not want you to be uninformed. 1 Corinthians 12:1 (ESV)

Now concerning what comes from the Spirit: brothers, I do not want you to be unaware.
1 Corinthians 12:1 (HCSB)

15 The spiritual person judges all things, but is himself to be judged by no one. 1 Corinthians 2:15 (ESV)

12 For we do not wrestle against flesh and blood, but against the rulers, against the authorities, against the cosmic powers over this present darkness, against the spiritual forces of evil in the heavenly places Ephesians 6:12 (ESV).

2 If anyone imagines that he knows something, he does not yet know as he ought to know.
1 Corinthians 8:2 (ESV)

3 for you are still of the flesh. For while there is jealousy and strife among you, are you not of the flesh and behaving only in a human way? 1 Corinthians 3:3 (ESV)

2. A past distortion of being spiritual.
2 You know that when you were pagans you were led astray to mute idols, however you were led.
1 Corinthians 12:2 (ESV)

1 And you were dead in the trespasses and sins 2 in which you once walked, following the course of this world, following the prince of the power of the air, the spirit that is now at work in the sons of disobedience— 3 among whom we all once lived in the passions of our flesh, carrying out the desires of the body and the mind, and were by nature children of wrath, like the rest of mankind.
Ephesians 2:1-3 (ESV)

32 and the spirits of prophets are subject to prophets. 33 For God is not a God of confusion but of peace. As in all the churches of the saints, 1 Corinthians 14:32-33 (ESV)

1 Beloved, do not believe every spirit, but test the spirits to see whether they are from God, for many false prophets have gone out into the world. 1 John 4:1 (ESV)

3. A proven distinctive of being spiritual.
3 Therefore I want you to understand that no one speaking in the Spirit of God ever says “Jesus is accursed!” and no one can say “Jesus is Lord” except in the Holy Spirit. 1 Corinthians 12:3 (ESV)

2 By this you know the Spirit of God: every spirit that confesses that Jesus Christ has come in the flesh is from God, 3 and every spirit that does not confess Jesus is not from God. This is the spirit of the antichrist, which you heard was coming and now is in the world already. 1 John 4:2-3 (ESV)

32 And it shall come to pass that everyone who calls on the name of the LORD shall be saved . . . Joel 2:32 (ESV)

21 And it shall come to pass that everyone who calls upon the name of the Lord shall be saved.’
Acts 2:21 (ESV)

9 because, if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved . . . 13 For “everyone who calls on the name of the Lord will be saved.” Romans 10:9; 13 (ESV)

23 but we preach Christ crucified, a stumbling block to Jews and folly to Gentiles,
1 Corinthians 1:23 (ESV)

13 When the Spirit of truth comes, he will guide you into all the truth . . . 14 He will glorify me, for he will take what is mine and declare it to you. John 16:13-14 (ESV)