Whosoever therefore shall confess me before men, him will I confess also before my Father which is in heaven. But whosoever shall deny me before men, him will I also deny before my Father which is in heaven. Think not that I am come to send peace on earth: I came not to send peace, but a sword. For I am come to set a man at variance against his father, and the daughter against her mother, and the daughter in law against her mother in law. And a man’s foes shall be they of his own household. He that loveth father or mother more than me is not worthy of me: and he that loveth son or daughter more than me is not worthy of me.
1 Corinthians 6:14 says we shouldn’t be unequally yoked with unbelievers.
Can two walk together, except they be agreed?
And it came to pass the same night, that the Lord said unto him, Take thy father’s young bullock, even the second bullock of seven years old, and throw down the altar of Baal that thy father hath, and cut down the grove that is by it: And build an altar unto the Lord thy God upon the top of this rock, in the ordered place, and take the second bullock, and offer a burnt sacrifice with the wood of the grove which thou shalt cut down. Then Gideon took ten men of his servants, and did as the Lord had said unto him: and so it was, because he feared his father’s household, and the men of the city, that he could not do it by day, that he did it by night. And when the men of the city arose early in the morning, behold, the altar of Baal was cast down, and the grove was cut down that was by it, and the second bullock was offered upon the altar that was built. And they said one to another, Who hath done this thing? And when they enquired and asked, they said, Gideon the son of Joash hath done this thing. Then the men of the city said unto Joash, Bring out thy son, that he may die: because he hath cast down the altar of Baal, and because he hath cut down the grove that was by it. And Joash said unto all that stood against him, Will ye plead for Baal? will ye save him? he that will plead for him, let him be put to death whilst it is yet morning: if he be a god, let him plead for himself, because one hath cast down his altar.
Sometimes we inherit things that we must tear down and destroy to establish righteousness in our family for the future generations. Sometimes things have to fail in our life for us to realize that they didn’t have any power to begin with.
How to deal with family that doesn’t live for Christ:
1. Never deny your faith.
Jesus can relate to anything we will ever go through.
For neither did his brethren believe in him.
And when he was come into his own country, he taught them in their synagogue, insomuch that they were astonished, and said, Whence hath this man this wisdom, and these mighty works? Is not this the carpenter’s son? is not his mother called Mary? and his brethren, James, and Joses, and Simon, and Judas? And his sisters, are they not all with us? Whence then hath this man all these things? And they were offended in him. But Jesus said unto them, A prophet is not without honour, save in his own country, and in his own house.And he did not many mighty works there because of their unbelief.
2. Know who you have to live separately from.
Now the Lord had said unto Abram, Get thee out of thy country, and from thy kindred, and from thy father’s house, unto a land that I will shew thee: And I will make of thee a great nation, and I will bless thee, and make thy name great; and thou shalt be a blessing:
Don’t give up on your spouse.
1 Peter 3:1
Likewise, ye wives, be in subjection to your own husbands; that, if any obey not the word, they also may without the word be won by the conversation of the wives;
1 Corinthians 7:13,16
And the woman which hath an husband that believeth not, and if he be pleased to dwell with her, let her not leave him. For what knowest thou, O wife, whether thou shalt save thy husband? or how knowest thou, O man, whether thou shalt save thy wife?
3. Try to live at peace.
If it be possible, as much as lieth in you, live peaceably with all men.
Don’t drive a wedge in any relationship. You can have healthy boundaries, but you don’t want to burn bridges. When a person comes to the Lord, you want them to be able to come back to you.
4. Speak the truth in love, and with meekness.
But speaking the truth in love, may grow up into him in all things, which is the head, even Christ:
5. Don’t expect the carnal to understand spiritual things.
Unto the pure all things are pure: but unto them that are defiled and unbelieving is nothing pure; but even their mind and conscience is defiled.
1 Corinthians 2:14
But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them , because they are spiritually discerned.
6. Don’t cast your pearls before swine.
Give not that which is holy unto the dogs, neither cast ye your pearls before swine, lest they trample them under their feet, and turn again and rend you.
7. Remember the prodigal advantage.
And when he came to himself, he said, How many hired servants of my father’s have bread enough and to spare, and I perish with hunger!  I will arise and go to my father, and will say unto him, Father, I have sinned against heaven, and before thee,
The prodigal advantage is the notion that no matter where a person goes, they know what they left and what they can come back to. We should show love and grace to those of our household outside the faith in a way that they know they can come back to us.