I never ignore scripture, although you seem to take a rather expansive view of same, when it is convenient. And a very attenuated view when that is needed to fit your worldview. Where does scripture say not to partner with unbelievers? And don't bother with 2 Corinthians 6:14. There Paul is talking about a permanent relationship ("bound together" or "yoked together"). He doesn't want believers to be marrying unbelievers, perhaps not going into business with unbelievers. "Bound together" does not imply an ad hoc relationship.
Where on EARTH do you get that idea? You need to actually read that chapter, instead of of parroting what some preacher told you. That whole chapter is about ministry work!!
2Co 6:1
Working together with him, then, we appeal to you not to receive the grace of God in vain.
2Co 6:2 For he says, "In a favorable time I listened to you, and in a day of salvation I have helped you." Behold, now is the favorable time; behold, now is the day of salvation.
2Co 6:3 We put no obstacle in anyone's way, so that no fault may be found with our ministry,
2Co 6:4
but as servants of God we commend ourselves in every way: by great endurance, in afflictions, hardships, calamities,
2Co 6:5 beatings, imprisonments, riots, labors, sleepless nights, hunger;
2Co 6:6 by purity, knowledge, patience, kindness, the Holy Spirit, genuine love;
2Co 6:7 by truthful speech, and the power of God; with
the weapons of righteousness for the right hand and for the left;
2Co 6:8 through honor and dishonor, through slander and praise. We are treated as impostors, and yet are true;
2Co 6:9 as unknown, and yet well known; as dying, and behold, we live; as punished, and yet not killed;
2Co 6:10 as sorrowful, yet always rejoicing; as poor, yet making many rich; as having nothing, yet possessing everything.
2Co 6:11 We have spoken freely to you, Corinthians; our heart is wide open.
2Co 6:12 You are not restricted by us, but you are restricted in your own affections.
2Co 6:13 In return (I speak as to children) widen your hearts also.
2Co 6:14 Do not be unequally yoked with unbelievers. For what partnership has righteousness with lawlessness? Or what fellowship has light with darkness?
2Co 6:15 What accord has Christ with Belial? Or what portion does a believer share with an unbeliever?
2Co 6:16 What agreement has the temple of God with idols? For we are the temple of the living God; as God said, "I will make my dwelling among them and walk among them, and I will be their God, and they shall be my people.
2Co 6:17 Therefore go out from their midst, and be separate from them, says the Lord, and touch no unclean thing; then I will welcome you,
2Co 6:18 and I will be a father to you, and you shall be sons and daughters to me, says the Lord Almighty."
Being "yoked together" is a direct reference to ministry, to labor...
Mat_11:29 TakeG142 myG3450 yokeG2218 uponG1909 you,
Tell me, Havensdad, if a Billy Graham crusade were coming to town and they invited Catholics, Methodists and Episcopalians to participate on the local steering committee, would you boycott the crusade?
Of COURSE I WOULDN'T!! Why on earth would I help Catholics lead others to hell? Now, Methodists are believers, and perhaps some Episcopalians are as well, so that would be different. But Catholics or Mormons?? Not a chance!
If your church were asked to help out at the Salvation Army soup kitchen would you accept?
That would depend upon many things. If their were catholics or mormons or Jehovah's witnesses allowed to work there and minister there, then NO, I would not. How on earth could any right minded Christian, help drag others to hell, by partnering with groups that blaspheme Christ, and teach damnable heresy?
Now, if I were working with other CHRISTIAN denominations, and I was permitted to share my faith? Of course. That is "ministry."