If anyone says to you, "This thing has to do with idols, you know sinful stuff," do not partake around them, for the sake of the one who informed you, and for conscience' sake; I mean not your own conscience, but the other persons; for why is my freedom judged by another's conscience? If I partake with thankfulness, why am I slandered concerning that for which I give thanks?
The reality is that there is still some carryover 'religiousity' your brother or sister is dealing with, and though it seems wise to them, we know it has nothing to do with the sanctification Jesus calls us to, but is self made religion...aestheticism. Teach them gently and love them through it and the Lord will sanctify all in Truth, His word is Truth. If it causes divisions in the fellowship, however, the religiousity has to go, remember what we are to cloth ourselves with at His table.
If there are those among you who insist on such regulations and ordinances, you may want to pull them to the side and tastefully let them know their fangs are poking out from behind the wool. If that doesn't work take a few others with you and see how it goes, the Lord will honor your patience and persistence in prayer and if its in His will, He will turn their heart.
Also, do not be carried off the other direction, be wary of those who would abuse grace and encourage others to do the same, you obviously can't go around sleeping with your father or your brothers wife and not expect a breach in the peace or shalom of the community. The worst of the worst know better than that. Seriously, we're not talking about unreasonable standards, remember your first love and the most important commandment everything else flows from that.
Never again forget that when you are called to increasing righteousness, you are called to increasing faithfulness to the covenant you are in. This is the message which you have heard from the beginning, that we should love one another. If we do that we know that we have passed out of death into life.
Be aware, though, a lot of people that live according to their own best thinking are going to hate you, from both ends of it actually. The religious are going to see you as a liberal blasphemer and hate you, slander you, murder you in their hearts every time they see you walking in the freedom and love of Christ...likewise most pagans...worshipers of idols, western philosophers and secular folks are going to see you as foolish and antiquated, both groups will want to kill you (if not for real, certainly in their thoughts and words). It's kinda like Cain who slew Able...And for what reason did he slay him? Because his deeds were evil, and his brother's were righteous. ...take heart through all of this, King Jesus has overcome every bit of it and he is the one we follow in triumphant procession, proclaiming victory and progressing joyfully in the faith with every Spirit empowered expression of balanced grace and truth that glorifies our Father.
Young ones in the faith, make sure no one deceives you; the one who practices righteousness is righteous, just as He is righteous; the one who practices sin is of the devil; for the devil has sinned from the beginning.
The Son of God appeared for this purpose, to destroy the works of the devil.
Go in the grace and mercies of the Lord.
